Synonyms for Arbitrary:

• adj.

  •absolute (adjective)
  • absolutist,
  • sovereign,
  • pre-eminent.
  •accepted (adjective)
  • undisputed.
  •all (adjective)
  • arbitrary.
  •autocratic (adjective)
  • more all-powerful,
  • most allpowerful,
  • allpowerful,
  • most all-powerful,
  • more allpowerful,
  • most czarlike,
  • more all powerful,
  • more czarlike,
  • most all powerful.
  •capricious (adjective)
  • mercurial,
  • fly-by-night,
  • frivolous,
  • notional,
  • mutable,
  • Flitting,
  • quirky,
  • changeable,
  • fluctuating,
  • Humorsome,
  • indecisive,
  • changeful,
  • volatile,
  • fleeting,
  • yo-yo,
  • flaky,
  • Vagarious,
  • fanciful,
  • up and down,
  • wayward,
  • fitful,
  • any way the wind blows,
  • vacillating,
  • scatterbrained,
  • temperamental,
  • YOYO,
  • sporadic,
  • oddest,
  • flighty.
  •dictatorial (adjective)
  • no joke,
  • straight out,
  • despotic,
  • magisterial,
  • no ifs ands or buts,
  • flat out,
  • peremptory,
  • overbearing,
  • bossy,
  • domineering,
  • downright,
  • high-handed.
  •dogmatic (adjective)
  • more stiffnecked,
  • most wrong-headed,
  • narrowminded,
  • de finite,
  • more fascistic,
  • high mighty,
  • most stiff-necked,
  • most wrongheaded,
  • in-tolerant,
  • more stiff necked,
  • wrong headed,
  • more wrongheaded,
  • most stiffnecked,
  • stiffnecked,
  • most fascistic,
  • un equivocal,
  • in tolerant,
  • onesided,
  • more stiff-necked,
  • most wrong headed,
  • one sided,
  • stiff necked,
  • narrow minded,
  • de-finite,
  • most stiff necked,
  • more wrong headed,
  • more wrong-headed,
  • un-equivocal.
  •erratic (adjective)
  • in calculable,
  • un-natural,
  • more directionless,
  • in-calculable,
  • most fluctuant,
  • un directed,
  • most directionless,
  • most shifting,
  • more undirected,
  • un-reliable,
  • meandering,
  • un usual,
  • more oddball,
  • more fluctuant,
  • un-usual,
  • un-directed,
  • in-consistent,
  • more shifting,
  • in consistent,
  • shifting,
  • un reliable,
  • most undirected,
  • iffy.
  •fickle (adjective)
  • unsteady,
  • quicksilver.
  •fortuitous (adjective)
  • more lucky dog,
  • flukest,
  • un-planned,
  • more luckydog,
  • luckydog,
  • un foreseen,
  • fluker,
  • un-foreseen,
  • more serendipitous,
  • un planned,
  • lucky dog,
  • most luckydog,
  • most serendipitous,
  • most lucky dog,
  • most lucky-dog,
  • more lucky-dog.
  •freakish (adjective)
  • most outre,
  • more outre,
  • un-conventional,
  • farout,
  • malformed,
  • un conventional.
  •haphazard (adjective)
  • in discriminate,
  • more designless,
  • dis-orderly,
  • un-thinking,
  • un-considered,
  • devil may care,
  • un-premeditated,
  • un conscious,
  • dis orderly,
  • un systematic,
  • un methodical,
  • un expected,
  • un coordinated,
  • unsystematic,
  • most designless,
  • un concerned,
  • un organized,
  • all over map,
  • un-coordinated,
  • dis organized,
  • de signless,
  • un premeditated,
  • de-signless,
  • un-expected,
  • un-concerned,
  • un-methodical,
  • un-conscious,
  • un-systematic,
  • un-organized,
  • willynilly,
  • un considered,
  • un thinking,
  • in-discriminate,
  • dis-organized,
  • more unmethodical,
  • most unmethodical.
  •helter-skelter (adjective)
  • hurry-scurry,
  • in disorder.
  •hit-or-miss (adjective)
  • trialand error.
  •inequitable (adjective)
  • un equal,
  • un-just,
  • un-ethical,
  • un juster,
  • un-equal,
  • dis criminatory,
  • un-balanced,
  • un-even,
  • in-equitable,
  • un-justest,
  • un ethical,
  • un-juster,
  • in equitable,
  • un even,
  • dis-criminatory,
  • un justest,
  • un just.
  •motiveless (adjective)
  • careless,
  • irregular,
  • rambling,
  • spastic,
  • ambivalent,
  • chancy,
  • Systemless,
  • adrift,
  • nonsystematic,
  • wandering.
  •opinionated (adjective)
  • highhanded,
  • self-assertive,
  • set in stone,
  • locked in,
  • seton,
  • opinionated,
  • singleminded,
  • hard line,
  • set on,
  • hardline,
  • weighted,
  • set-on,
  • tilted.
  •optional (adjective)
  • not required,
  • noncompulsory,
  • up to the individual,
  • non-compulsory,
  • nonobligatory,
  • no strings attached.
  •peremptory (adjective)
  • in controvertible,
  • un deniable,
  • un-deniable,
  • in-controvertible.
  •predominant (adjective)
  • pre dominate,
  • more directing,
  • most predominate,
  • holding the reins,
  • pre-dominate,
  • most surpassing,
  • para mount,
  • pre dominant,
  • more predominate,
  • pre-dominant,
  • sur-passing,
  • more surpassing,
  • sur passing,
  • most directing,
  • over powering,
  • pre vailing,
  • holding reins,
  • over-powering,
  • para-mount,
  • preponderant.
  •prescribed (adjective)
  • prescriptive,
  • Magistral,
  • Thetical,
  • thetic.
  •random (adjective)
  • more unaimed,
  • most objectless,
  • most unaimed,
  • spoter,
  • more objectless,
  • most driftless,
  • un aimed,
  • more driftless,
  • un-aimed,
  • spotest.
  •set as guide (adjective)
  • prescribed.
  •subjective (adjective)
  • subjective,
  • personal,
  • partisan,
  • individual,
  • partial.
  •summary (adjective)
  • more breviloquent,
  • recapped,
  • more rehashed,
  • most run through,
  • most breviloquent,
  • more compacted,
  • more recapped,
  • re capped,
  • boiled down,
  • most compendiary,
  • more compendiary,
  • short sweet,
  • most recapped,
  • most runthrough,
  • runthrough,
  • most compacted,
  • more run through,
  • most rehashed,
  • more runthrough,
  • most run-through,
  • re-hashed,
  • more run-through,
  • re-capped,
  • in nutshell,
  • re hashed.
  •tough (adjective)
  • most hard-shelled,
  • re-solute,
  • most hardshelled,
  • re solute,
  • more hard-shelled,
  • un-bending,
  • unforgiving,
  • more hardshelled,
  • hard shelled,
  • most hard shelled,
  • un-alterable,
  • un bending,
  • un manageable,
  • un-controllable,
  • hard bitten,
  • hardshelled,
  • un forgiving,
  • more hard shelled,
  • un controllable,
  • hard nosed,
  • in tractable,
  • in-tractable,
  • most ruffianly,
  • un-manageable,
  • un-forgiving,
  • ex acting,
  • ex-acting,
  • more ruffianly,
  • un alterable,
  • hard boiled.
  •undisputed (adjective)
  • un disputed,
  • un-disputed.
  •undisputed/undisputable (adjective)
  • more uncontested,
  • un contested,
  • re-cognized,
  • in disputable,
  • un doubted,
  • more unquestioned,
  • un-contested,
  • more unchallenged,
  • un-doubted,
  • most admitted,
  • in dubitable,
  • most unquestioned,
  • most unchallenged,
  • un-challenged,
  • un challenged,
  • un erring,
  • in-dubitable,
  • un-questioned,
  • most uncontested,
  • un questioned,
  • in-disputable,
  • more admitted,
  • un-disputable,
  • in contestable,
  • un disputable,
  • in-contestable,
  • re cognized.
  •unfair (adjective)
  • more unrightful,
  • un duest,
  • un-rightful,
  • un lawful,
  • in excusable,
  • un fairest,
  • un scrupulous,
  • un-fair,
  • dis creditable,
  • un-principled,
  • un-fairer,
  • un-duer,
  • in-excusable,
  • un-warranted,
  • un-justifiable,
  • un fairer,
  • un principled,
  • un-lawful,
  • un-sporting,
  • un rightful,
  • uncalledfor,
  • un-duest,
  • un fair,
  • dis honest,
  • dis-honest,
  • un justifiable,
  • dis honorable,
  • more unsporting,
  • dis-honorable,
  • un-due,
  • un-scrupulous,
  • un due,
  • most unrightful,
  • un-fairest,
  • dis-creditable,
  • un sporting,
  • most unsporting.
  •unreasonable (adjective)
  • in temperate,
  • un-reasonable,
  • un conscionable,
  • far fetched,
  • costing arm and leg,
  • over-kill,
  • in-consequential,
  • over much,
  • more too too,
  • most tootoo,
  • costing arm a leg,
  • most too-too,
  • in valid,
  • over kill,
  • more tootoo,
  • un-warrantable,
  • costing arm leg,
  • in-valid,
  • un reasonable,
  • most absonant,
  • too too,
  • in consequential,
  • in-ordinate,
  • in-congruous,
  • un warrantable,
  • more absonant,
  • most reasonless,
  • more unwarrantable,
  • priciest,
  • in-temperate,
  • most unwarrantable,
  • more too-too,
  • in-coherent,
  • pricier,
  • more reasonless,
  • costing an arm a leg,
  • full hot air,
  • in congruous,
  • costing an arm leg,
  • more overkill,
  • un-conscionable,
  • off wall,
  • most too too,
  • tootoo,
  • costing arm and a leg,
  • most overkill,
  • costing an arm and leg.
  •unreasoned (adjective)
  • un reasoned,
  • un-reasoned.
  •wanton (adjective)
  • most motiveless,
  • un asked,
  • un justified,
  • un provoked,
  • more unprovoked,
  • most unprovoked,
  • un-justified,
  • more motiveless,
  • un-provoked,
  • un-asked.
  •wayward (adjective)
  • more crossgrained,
  • most selfwilled,
  • selfindulgent,
  • dis obedient,
  • in-subordinate,
  • in corrigible,
  • most crossgrained,
  • self indulgent,
  • in-corrigible,
  • more cross grained,
  • un-governable,
  • more selfwilled,
  • most self willed,
  • un dependable,
  • most cross grained,
  • un-compliant,
  • in subordinate,
  • cross grained,
  • more cross-grained,
  • most self-willed,
  • selfwilled,
  • un compliant,
  • self willed,
  • dis-obedient,
  • most cross-grained,
  • more self willed,
  • more self-willed,
  • un-dependable.

• n.

  •
  • superficial,
  • uncertain,
  • judicious,
  • unpredictable,
  • scientific,
  • unaccountable,
  • unscientific,
  • temporary.
  •
  • surprise.
  •
  • opinion.
  •
  • over,
  • politics.
  •arbitrary (noun)
  • discretionary,
  • discretional,
  • impulsive.
  •despotic (noun)
  • study at.
  •unfair (noun)
  • wrongful.

• v.

  •commanding (verb)
  • governing.

• Other synonyms:

  •
  • extempore,
  • judgmental,
  • incidentally,
  • autarchic,
  • autarchical,
  • chance,
  • monocratic,
  • inadvertently,
  • spontaneous,
  • accidental,
  • spontaneity,
  • unpremeditated,
  • unintended,
  • tyrannic,
  • instinctive,
  • tyrannous,
  • sine die,
  • unwitting,
  • automatically,
  • autocratical,
  • absolutistic,
  • unprepared,
  • unorganized,
  • ad lib,
  • unintentional,
  • involuntary,
  • unscheduled,
  • extemporaneous,
  • unwittingly,
  • unconscious,
  • ad hoc,
  • reflexive,
  • impromptu,
  • spur-of-the-moment,
  • unplanned,
  • incidental,
  • instinctual,
  • seat-of-the-pants,
  • Willy nilly,
  • automatic,
  • offhand,
  • coincidental,
  • reflex,
  • off the cuff.
  •
  • primitive,
  • mechanical,
  • loose,
  • accidentally,
  • casual.
  •
  • cold,
  • totalitarian.
  •fanatic
  • fanatical.
  •monotonous
  • mechanistic.
  •unfair
  • bum,
  • unjustified,
  • bad,
  • unlucky,
  • slanted,
  • one-sided,
  • down and dirty,
  • unwarranted,
  • cruel,
  • unrewarded,
  • biased,
  • undemocratic,
  • opportunistic,
  • elitist,
  • oppressive,
  • prejudicial,
  • cutthroat,
  • feudal,
  • illiberal,
  • unjust,
  • unequal.

Paraphrases for Arbitrary:

• Independent

  • Adjective
    capricious, discretionary, tyrannical, gratuitous, abusive, unwarranted, authoritarian, autocratic, subjective, artificial, extrajudicial, unjustified, frivolous, wilful, peremptory, unlawful, coercive, unjustifiable, deliberate, despotic, uncontrolled, irrational, false.
  • Noun, singular or mass
    summary, wilful.

• Other Related

  • Adjective
    indiscriminate, arbitrariness, random, high-handed, wanton, haphazard, unreasonable, dictatorial.
  • Noun, singular or mass
    indiscriminate, arbitrariness, wanton, despotism.
  • Adverb
    arbitrarily.

Antonyms for Arbitrary:

• adj.

  • all
    nonarbitrary.
  • whimsical, chance
    definite, logical, reasoned, reliable, consistent, dependable, supported, circumspect, unchanging, sensible.
  • Other antonyms:
    docile, restrained, continuous, nonrandom, moral, mild, rational, accountable, ductile, steady, meek, deliberate, fixed, systematized, limited, honorable, aware, systematic, balanced, planned, constitutional, gentle, methodical, restricted, democratic, conditional, orderly, lowly, law-abiding, lawful, ethical, responsible, constant, purposeful, circumscribed, regular, thoughtful, complaisant, ordered, humble, arranged, established, lenient, reasonable, contingent, understanding, irreproachable, orchestrated, submissive, willful, unimpeachable, republican, principled, conscious, stable, impartial, compliant, organized, even, yielding, set.

• Other antonyms:

  • n.
    comparative, relative.

Homophones for Arbitrary:

• arbiter.