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,
  • nethermost,
  • Undermost,
  • lowermost.
  •central (adjective)
  • pivotal.
  •different (adjective)
  • unusual.
  •earliest (adjective)
  • primordial.
  •extreme (adjective)
  • excessive,
  • severe,
  • intense,
  • egregious,
  • ultra,
  • extreme.
  •far-out (adjective)
  • rad,
  • sensational.
  •fundamental, basic (adjective)
  • constitutional,
  • innate,
  • cardinal,
  • inherent,
  • natural,
  • essential,
  • profound,
  • organic,
  • intrinsic,
  • native,
  • vital,
  • basal,
  • thoroughgoing,
  • primitive,
  • primal,
  • primary,
  • deep-seated.
  •important (adjective)
  • major.
  •major (adjective)
  • stellar.
  •nonobservant (adjective)
  • nonconforming.
  •skeptical (adjective)
  • iconoclastic.
  •stupendous (adjective)
  • fab.
  •underground (adjective)
  • Subterrestrial.
  •unorthodox (adjective)
  • dissident,
  • unconventional,
  • unorthodox,
  • heretical.
  •visionary (adjective)
  • idealistic,
  • visionary.

• n.

  •
  • abstract,
  • conceptual,
  • theoretical,
  • utopian,
  • orthodox,
  • popular,
  • deterministic,
  • metaphysical.
  •
  • anarchist,
  • counterrevolutionary,
  • demonstrator,
  • comprehensive.
  •
  • surface.
  •
  • away,
  • edge,
  • gradually,
  • concern.
  •
  • chief,
  • principal,
  • main,
  • leading,
  • supreme,
  • elementary,
  • predominant.
  •agitator (noun)
  • inciter,
  • reformer,
  • revisionist,
  • leftist.
  •demonstrator (noun)
  • Revolter,
  • rioter,
  • objector.
  •extremist (noun)
  • Ultraist.
  •person who advocates significant, often extreme change (noun)
  • secessionist,
  • insurrectionist,
  • firebrand.
  •radical (noun)
  • chemical group,
  • root word,
  • theme,
  • group,
  • free radical,
  • stem,
  • radical sign,
  • base,
  • root,
  • new,
  • immoderate.
  •secret agent (noun)
  • agent provocateur.

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.

Holonyms for Radical:

• n.

  • communication
    ideograph, ideogram.

Hypernym for Radical:

• n.

  • person
    bolshie, trotskyite, trot, revolutionary, terrorist, extremist, revolutionist, bolshy, subversive, red, leveller, syndicalist, Young Turk, marxist, subverter, nihilist, wobbly, leveler, trotskyist, bolshevik, anarchist.

Hyponym for Radical:

• n.

  • communication
    character, grapheme, graphic symbol, graph.
  • person
    mortal, someone, somebody, individual, soul, person.
  • quantity
    quantity, measure, amount.