Definition for Radical:

• Belonging to, or proceeding from, the root of a plant; as, radical tubers or hairs.

Synonyms for Radical:

• adj.

  •bottom (adjective)
  • rock bottom,
  • lowermost,
  • nethermost,
  • Undermost,
  • foundational.
  •central (adjective)
  • pivotal.
  •deviating by extremes (adjective)
  • recalcitrant,
  • seditious,
  • sweeping,
  • insubordinate,
  • uncompromising,
  • freethinking,
  • severe,
  • anarchistic,
  • thorough,
  • entire,
  • refractory,
  • militant,
  • complete,
  • insurrectionary,
  • fanatical,
  • intransigent,
  • nihilistic,
  • way out,
  • riotous,
  • far-out,
  • rebellious,
  • leftist,
  • excessive,
  • mutinous,
  • restive,
  • advanced,
  • immoderate,
  • iconoclastic,
  • rabid,
  • insurgent,
  • Ultraist,
  • lawless,
  • violent,
  • recusant,
  • revolutionary,
  • ultra,
  • extremist.
  •different (adjective)
  • unusual.
  •earliest (adjective)
  • primordial.
  •extreme (adjective)
  • drastic,
  • severe,
  • extreme,
  • excessive,
  • ultra,
  • egregious,
  • intense.
  •far-out (adjective)
  • rad,
  • sensational.
  •fundamental, basic (adjective)
  • cardinal,
  • underlying,
  • profound,
  • natural,
  • primitive,
  • deep-seated,
  • organic,
  • constitutional,
  • original,
  • native,
  • inherent,
  • primary,
  • foundational,
  • innate,
  • primal,
  • intrinsic,
  • vital,
  • essential,
  • thoroughgoing,
  • bottom,
  • basal.
  •important (adjective)
  • major.
  •major (adjective)
  • stellar.
  •nonobservant (adjective)
  • nonconforming.
  •overenthusiastic (adjective)
  • fanatical.
  •progressive (adjective)
  • gradual,
  • advanced.
  •skeptical (adjective)
  • iconoclastic.
  •stupendous (adjective)
  • fab.
  •underground (adjective)
  • Subterrestrial.
  •unorthodox (adjective)
  • dissident,
  • heretical,
  • iconoclastic,
  • unconventional,
  • unorthodox.
  •visionary (adjective)
  • idealistic,
  • visionary.
  •wide-ranging (adjective)
  • sweeping.

• n.

  •
  • central,
  • utopian,
  • theoretical,
  • abstract,
  • popular,
  • conceptual,
  • metaphysical,
  • nonconformist,
  • deterministic,
  • orthodox.
  •
  • communist,
  • uncompromising,
  • fourfold,
  • communistic,
  • accumulative,
  • red,
  • riotous,
  • insurrectionary,
  • gathering,
  • intransigent,
  • socialist,
  • subversive,
  • exponential,
  • rabid,
  • depleted,
  • mutinous,
  • nihilistic,
  • pink,
  • militant,
  • insurgent,
  • fanatical,
  • avant-garde,
  • leftist,
  • growing,
  • lawless,
  • insubordinate,
  • recalcitrant,
  • declining,
  • seditious,
  • ultraconservative,
  • racist,
  • forward,
  • advanced,
  • graduated,
  • rebellious.
  •
  • activist,
  • counterrevolutionary,
  • campaigner,
  • anarchist,
  • demonstrator,
  • agitator,
  • comprehensive.
  •
  • anarchic,
  • underlying,
  • rebel,
  • guerrilla,
  • foundational,
  • civil,
  • surface.
  •
  • concern,
  • radically,
  • cosmetic,
  • away,
  • gradually,
  • evolutionary,
  • quicksilver,
  • politics,
  • edge,
  • far-out,
  • gradual,
  • developmental,
  • fanatic.
  •
  • elementary,
  • main,
  • revolutionist,
  • supreme,
  • predominant,
  • zealot,
  • leading,
  • principal,
  • chief.
  •agitator (noun)
  • inciter,
  • reformer,
  • revisionist,
  • leftist.
  •demonstrator (noun)
  • objector,
  • rioter,
  • Revolter,
  • protester.
  •detractor (noun)
  • iconoclast.
  •enthusiast (noun)
  • zealot.
  •extremist (noun)
  • Ultraist.
  •fundamental (noun)
  • underlying.
  •person who advocates significant, often extreme change (noun)
  • avant-garde,
  • secessionist,
  • renegade,
  • nihilist,
  • reformer,
  • firebrand,
  • nonconformist,
  • fanatic,
  • objector,
  • mutineer,
  • iconoclast,
  • rebel,
  • Revolter,
  • insurrectionist,
  • pacifist,
  • left-winger,
  • subversive,
  • freethinker,
  • rioter,
  • anarchist,
  • agitator.
  •protester (noun)
  • demonstrator.
  •radical (noun)
  • basic,
  • root,
  • root word,
  • base,
  • new,
  • radical sign,
  • immoderate,
  • revolutionary,
  • free radical,
  • basal,
  • chemical group,
  • ultra,
  • theme,
  • stem,
  • extremist,
  • group.
  •reformer (noun)
  • crusader.
  •revolutionist (noun)
  • revolutionist.
  •secret agent (noun)
  • agent provocateur.

• Other synonyms:

  •
  • anarchic,
  • rebel,
  • underlying,
  • pacifist,
  • radically,
  • socialist,
  • evolutionary,
  • cosmetic,
  • seditious,
  • revolutionist,
  • foundational,
  • communist,
  • far-out,
  • unpredictable.
  •
  • civil,
  • gradual,
  • militant,
  • quicksilver,
  • guerrilla,
  • subversive,
  • developmental,
  • iconoclast,
  • bolshevik.
  •
  • sweeping,
  • rebellious,
  • fanatic.
  •
  • zealot,
  • original.
  •
  • away.
  •bohemian
  • beatnik.
  •communist
  • communistic.
  •demonstrator
  • protester.
  •dogmatist
  • bigot.
  •fanatic
  • fanatical.
  •fanatical
  • rabid.
  •grumbler
  • Murmurer.
  •in opposition
  • maverick.
  •instigator
  • agitator.
  •insubordinate
  • mutinous.
  •latitudinarian
  • freethinker.
  •novel
  • fresh.
  •radical
  • left.
  •rebel
  • rioter,
  • nonconformist,
  • mutineer.
  •reformer
  • crusader.
  •socialist
  • leftist.
  •unconventional
  • underground.
  •Other relevant words:
  • hieroglyphics,
  • fierce,
  • pacifist,
  • anarchic,
  • iconoclast,
  • prow,
  • embryonic,
  • provenance,
  • civil,
  • blatant,
  • collaborator,
  • morphology,
  • genetous,
  • broad,
  • edge,
  • elemental,
  • blue chip,
  • bang-up,
  • embryo,
  • base of operations,
  • universal,
  • implanted,
  • all,
  • defector,
  • hydroxyl,
  • correction,
  • fanatic,
  • numeral,
  • choice,
  • digital,
  • ubiquitous,
  • numeric,
  • shorthand,
  • lunatic fringe,
  • topflight,
  • idea,
  • individualist,
  • boss,
  • clean,
  • extremely,
  • riotous,
  • report,
  • atom,
  • macromolecule,
  • integral,
  • shank,
  • hardpan,
  • semen,
  • isomer,
  • rebellious,
  • A1,
  • tip-top,
  • freethinker,
  • activist,
  • objector,
  • noble,
  • vigorous,
  • very,
  • extraordinary,
  • tetrad,
  • anarchistic,
  • impossible,
  • absolutely,
  • inherited,
  • all-inclusive,
  • proper,
  • solution,
  • new,
  • elaboration,
  • al-Qaeda,
  • far-ranging,
  • lying low,
  • larboard,
  • groundbreaking,
  • firebrand,
  • rudimentary,
  • Provenience,
  • benzene ring,
  • clean sweep,
  • sperm,
  • pinko,
  • cardinal,
  • hieroglyphic,
  • veritable,
  • congenital,
  • comprehensive,
  • potent,
  • neat,
  • paper,
  • wizard,
  • cataclysmic,
  • bully,
  • PHAT,
  • polymer,
  • revolutionary,
  • predominant,
  • al-Qaida,
  • weird,
  • divine,
  • too much,
  • Thoroughpaced,
  • complete,
  • immoderate,
  • equation,
  • antacid,
  • reformer,
  • Enclitic,
  • derivation,
  • loner,
  • conversion,
  • roundly,
  • sinistrocerebral,
  • fourfold,
  • embedded,
  • abstract,
  • even,
  • logograph,
  • central,
  • conceptual,
  • al-Qa'ida,
  • inorganic chemical,
  • importance,
  • vital,
  • Kana,
  • sensational,
  • account,
  • glyceryl,
  • fixed,
  • violent,
  • mathematical group,
  • depleted,
  • classic,
  • etymon,
  • base,
  • sinistrorse,
  • cornerstone,
  • outright,
  • harshly,
  • rioter,
  • graphic,
  • lineage,
  • maniac,
  • ascendent,
  • Ogham,
  • reformatory,
  • essential,
  • diehard,
  • basis,
  • unrestricted,
  • terra firma,
  • concern,
  • determinative,
  • homocycle,
  • thoroughly,
  • profound,
  • born,
  • unqualified,
  • nucleotide,
  • mutineer,
  • rotatory,
  • gradual,
  • breathtaking,
  • floor,
  • die-hard,
  • Revisional,
  • substructure,
  • terrorist,
  • change of state,
  • critical,
  • bearing wall,
  • uncompromising,
  • brave,
  • Ingenite,
  • pressing,
  • arrowhead,
  • quality,
  • conjugation,
  • sinister,
  • left,
  • extremist,
  • futuristic,
  • head,
  • Revolter,
  • formula,
  • nontraditional,
  • wedge,
  • major,
  • reformative,
  • repair,
  • insurgent,
  • alkali,
  • beautiful,
  • intrinsical,
  • chemical group,
  • homopolymer,
  • open-minded,
  • free radical,
  • first class,
  • inclusive,
  • morpheme,
  • striking,
  • bolshevik,
  • fab,
  • rational,
  • recovery,
  • downright,
  • fanatical,
  • famous,
  • reform,
  • crackerjack,
  • constituent,
  • prefix,
  • radical sign,
  • broad-based,
  • theoretical,
  • flooring,
  • bitter-ender,
  • fifth columnist,
  • figural,
  • purification,
  • footing,
  • secessionist,
  • all-out,
  • down,
  • sudden,
  • substratum,
  • opinionated,
  • stem,
  • bed,
  • in embryo,
  • phase change,
  • declension,
  • benzyl,
  • complex,
  • gone,
  • nigh,
  • nonconforming,
  • foremost,
  • rad,
  • topping,
  • natural,
  • differential,
  • ascendant,
  • alkalinity,
  • criminal,
  • arc,
  • insubordinate,
  • felon,
  • Progressist,
  • omnipresent,
  • nonconventional,
  • popular,
  • different,
  • first-rate,
  • superb,
  • regimen,
  • sudden change,
  • Riprap,
  • wholly,
  • according to,
  • troublemaker,
  • transcendental,
  • regular,
  • prize,
  • antecedent,
  • unusual,
  • advanced,
  • beatnik,
  • internal,
  • eccentric,
  • dope,
  • jim-dandy,
  • heptad,
  • trimer,
  • bigot,
  • bomber,
  • widespread,
  • forceful,
  • ingrained,
  • nonconformist,
  • Numerative,
  • left-winger,
  • sill,
  • bottom,
  • meliorist,
  • dead,
  • nucleus,
  • mean,
  • compound,
  • protester,
  • ground,
  • formative,
  • collaborationist,
  • outrageous,
  • grand,
  • oxyacid,
  • sterling,
  • Ingenerate,
  • substantial,
  • bound morpheme,
  • seditious,
  • splendid,
  • motif,
  • focal,
  • completely,
  • reciprocal,
  • original,
  • gunman,
  • Caused,
  • rudiment,
  • numerical,
  • thoroughgoing,
  • totally,
  • groundwork,
  • instinctive,
  • affix,
  • vivid,
  • surd,
  • Tap-root,
  • free form,
  • indigenous,
  • arithmetical,
  • grouping,
  • Metamer,
  • broad-minded,
  • heretic,
  • origin,
  • incendiary,
  • phonetic symbol,
  • principal,
  • subject,
  • unmitigated,
  • bonny,
  • rabble-rouser,
  • gangbusters,
  • revisionist,
  • material,
  • gathering,
  • bunch,
  • constitutional,
  • fully,
  • heterocycle,
  • noticeable,
  • guerrilla,
  • general,
  • odd,
  • sinistral,
  • startling,
  • genetic,
  • infix,
  • theme,
  • rooted,
  • germinal,
  • infixation,
  • dramatic,
  • progressivist,
  • Congenite,
  • wall-to-wall,
  • peachy,
  • of the essence,
  • radically,
  • dimer,
  • anarchist,
  • nonorthodox,
  • inward,
  • taproot,
  • cool,
  • desperate,
  • cosmetic,
  • straight,
  • ultraconservative,
  • embryotic,
  • primeval,
  • reagent,
  • expressive,
  • fundamental,
  • perfect,
  • rise,
  • bend,
  • offbeat,
  • unbiased,
  • superior,
  • negative,
  • thorough,
  • boffo,
  • syndicalist,
  • seed,
  • pink,
  • gut,
  • recusant,
  • immense,
  • affixation,
  • Bouleversement,
  • way out,
  • dissenter,
  • Overruling,
  • top of the line,
  • hypostasis,
  • dynamic,
  • marked,
  • inherent,
  • oxidation,
  • blanket,
  • pavement,
  • plain,
  • blue-ribbon,
  • Logometric,
  • Stereobate,
  • deep-rooted,
  • acid,
  • catastrophic,
  • native,
  • maverick,
  • germ,
  • character,
  • furthest,
  • propyl,
  • excessively,
  • prizewinning,
  • evolutionary,
  • Sectary,
  • gradually,
  • exponential,
  • out of sight,
  • catholic,
  • organic chemical,
  • matter,
  • omnibus,
  • inwrought,
  • radicle,
  • all-encompassing,
  • algorithmic,
  • solid ground,
  • draconian,
  • hexad,
  • communist,
  • dyad,
  • marvelous,
  • grounds,
  • stand,
  • organic,
  • prefixation,
  • anomaly,
  • bolshevist,
  • near,
  • side chain,
  • hieroglyph,
  • undercarriage,
  • banner,
  • stem turn,
  • plumb,
  • hereditary,
  • cuneiform,
  • severely,
  • nonconformer,
  • impressive,
  • quantum leap,
  • generative,
  • Sans-culotte,
  • rock bottom,
  • superlative,
  • undergirding,
  • hard-nosed,
  • wrong side,
  • cracking,
  • bag,
  • accidence,
  • chief,
  • ordinal,
  • separatist,
  • gravely,
  • sincerely,
  • ion,
  • extensive,
  • chemical,
  • infinite,
  • mutinous,
  • chronic,
  • Hydracid,
  • free spirit,
  • graduated,
  • ultimate,
  • treatment,
  • groovy,
  • bizarre,
  • militant,
  • instigator,
  • quisling,
  • cation,
  • bow,
  • nihilist,
  • pedestal,
  • first-string,
  • trunk,
  • hell-raiser,
  • refinement,
  • Underpinning,
  • quicksilver,
  • syngenic,
  • strong,
  • subversion,
  • saboteur,
  • revolutionist,
  • crusader,
  • primal,
  • egregious,
  • bedrock,
  • lattice,
  • triad,
  • consummate,
  • basilar,
  • developmental,
  • primo,
  • enormously,
  • source,
  • total,
  • suffix,
  • morphophonemics,
  • arsonist,
  • deep-seated,
  • Murmurer,
  • bud,
  • primitive,
  • composition,
  • molecule,
  • positively,
  • prejudiced,
  • finite,
  • outermost,
  • imaginary,
  • displacement,
  • fairly,
  • purely,
  • wonderful,
  • anarcho-syndicalist,
  • space lattice,
  • causal,
  • melodic theme,
  • leftist,
  • demagogue,
  • transference,
  • logarithmic,
  • unprejudiced,
  • virtual,
  • utter,
  • destruction,
  • unpredictable,
  • morph,
  • five-star,
  • zealot,
  • unreformed,
  • firm,
  • rebel,
  • fantabulous,
  • uttermost,
  • straight chain,
  • insurrectionist,
  • of vital importance,
  • top-notch,
  • restoration,
  • bigoted,
  • portside,
  • perfectly,
  • desperado,
  • stupendous,
  • seat,
  • high-class,
  • intensive,
  • substantive,
  • hot,
  • hardly,
  • bumper,
  • Neutralizer,
  • righteous,
  • arch,
  • transilient,
  • reformation,
  • heartily,
  • important,
  • rootage,
  • group,
  • cutting,
  • home,
  • deep,
  • thoroughbred,
  • inflection,
  • unsurpassed,
  • Submultiple,
  • Ultraist,
  • morphemics,
  • fundament,
  • swell,
  • seriously,
  • certainly,
  • rigorous,
  • Underbuilding,
  • agent provocateur,
  • lowermost,
  • irreconcilable,
  • Grammalogue,
  • dynamite,
  • connate,
  • slick,
  • altogether,
  • pentad,
  • levorotatory,
  • foot,
  • stalk,
  • possible,
  • infrastructure,
  • ancestor,
  • refractory,
  • corking,
  • topic,
  • quite,
  • basic,
  • queer,
  • pivotal,
  • entrenched,
  • real,
  • paramount,
  • leveler,
  • demonstrator,
  • wobbly,
  • all-embracing,
  • utopian,
  • beginning,
  • rune,
  • word form,
  • wholesale,
  • dandy,
  • Undermost,
  • hiragana,
  • solid rock,
  • soundly,
  • tolerant,
  • dire,
  • pair,
  • constitutive,
  • allyl,
  • great,
  • terrific,
  • Utopist,
  • ab ovo,
  • greatest,
  • top,
  • unconditional,
  • wide,
  • foundational,
  • root word,
  • monad,
  • immanent,
  • acidity,
  • fantastic,
  • aliquot,
  • Gemmule,
  • racist,
  • octad,
  • crazy,
  • left-hand,
  • underground,
  • suffixation,
  • cycle,
  • experimental,
  • normal,
  • Figurate,
  • bedding,
  • incarnate,
  • at the limit,
  • root,
  • fresh,
  • rabid,
  • a-ok,
  • irrational,
  • substantially,
  • Proclitic,
  • heavenly,
  • visionary,
  • Stylobate,
  • urgent,
  • entire,
  • subjective,
  • thug,
  • Progressionist,
  • inbred,
  • exotic,
  • capital,
  • understructure,
  • principle,
  • primary,
  • badly,
  • ultra-,
  • red,
  • reversal,
  • nethermost,
  • biochemical,
  • brag,
  • figurative,
  • paradigm,
  • intrinsic,
  • ultra,
  • harsh,
  • nifty,
  • considerable,
  • unregenerate,
  • thorough-going,
  • significant,
  • gradual change,
  • accumulative,
  • counterrevolutionary,
  • fore,
  • away,
  • form,
  • absolute,
  • entirely,
  • effective,
  • main,
  • conception,
  • argument,
  • drastically,
  • sinistrocular,
  • chain,
  • Instilled,
  • descriptor,
  • schismatic,
  • left-wing,
  • basal,
  • fractional,
  • Substruction,
  • umbrella,
  • marginal,
  • lovely,
  • anlage,
  • branched chain,
  • keen,
  • Subterrestrial,
  • house,
  • seminal,
  • unreserved,
  • idealist,
  • origination,
  • exception,
  • chemical element,
  • musical theme,
  • Protogenic,
  • anion,
  • Emendatory,
  • FOUR STAR,
  • shocking,
  • clear,
  • quantum jump,
  • fundamentalist,
  • cure,
  • set,
  • sternly,
  • most,
  • decimal,
  • ideogram,
  • surface,
  • prime,
  • Revisory,
  • foundation,
  • idealistic,
  • avant-garde,
  • puissant,
  • pervasive,
  • Stirps,
  • supernal,
  • in the grain,
  • elementary,
  • Numerary,
  • forward,
  • agent,
  • pure,
  • port,
  • monomer,
  • signifier,
  • deterministic,
  • ultramodern,
  • inborn,
  • pristine,
  • freethinking,
  • restive,
  • katakana,
  • renegade,
  • meat and potatoes,
  • deep-dyed,
  • pregnant,
  • revision,
  • pictogram,
  • crucial,
  • leading,
  • fast,
  • traitor,
  • powerful,
  • frontline,
  • liberalistic,
  • inception,
  • tooth root,
  • utmost,
  • primordial,
  • sheer,
  • gilt-edged,
  • positive,
  • Revulsive,
  • verso,
  • top-shelf,
  • recalcitrant,
  • orthodox,
  • basement,
  • awesome,
  • insurrectionary,
  • allomorph,
  • communistic,
  • pictograph,
  • revolution,
  • second thoughts,
  • phonetic,
  • fond,
  • copolymer,
  • ring,
  • politics,
  • agitator,
  • corrective,
  • campaigner,
  • impair,
  • aboriginal,
  • supreme,
  • innate,
  • subversive,
  • fabulous,
  • YIPPIE,
  • sweeping,
  • egg,
  • logogram,
  • fine,
  • radix,
  • commencement,
  • dissentient,
  • settled,
  • underlying,
  • wild,
  • all-pervading,
  • genesis,
  • lawless,
  • stock,
  • unrepentant,
  • top-flight,
  • nihilistic,
  • through and through,
  • far-out,
  • Engrained,
  • reformist,
  • cause,
  • alternative,
  • established,
  • dyed-in-the-wool,
  • sectarian,
  • exhaustive,
  • element,
  • counterclockwise,
  • out-and-out,
  • utterly,
  • growing,
  • socialist,
  • full,
  • Nonacid,
  • core,
  • metaphysical,
  • inciter,
  • intransigent,
  • Imbedded,
  • ideograph,
  • hype,
  • kooky,
  • stellar,
  • declining.

Antonyms for Radical:

• adj.

  • deviating by extremes
    peaceful, obedient.
  • fundamental, basic
    extrinsic, unnatural, unimportant, conservative, superficial, inessential, moderate, nonessential, minor, secondary.
  • Other antonyms:
    atrocious, mediocre, nonprogressive, low-grade, hard, inadequate, substandard, incomplete, middling, strict, pathetic, wretched, old, incident, conventional, incidental, dogmatic, partial, stodgy, rigid, terrible, rotten, liberal, slight, trial, lousy, inferior, progressive, poor, hidebound, tentative, second-rate, awful, bad, doctrinal, execrable, vile, superficial, unreconstructed, old fashioned, unsatisfactory, palliative.