Synonyms for Unwarrantable:

• adj.

  •illegal (adjective)
  • actionable,
  • Prosecutable,
  • sub rosa,
  • unconstitutional,
  • wildcat,
  • Interdicted,
  • crooked,
  • racket,
  • unlicensed,
  • banned,
  • taboo,
  • unlawful,
  • heavy,
  • bootleg,
  • contraband,
  • smuggled,
  • hot,
  • outside the law,
  • illicit,
  • unauthorized,
  • illegal,
  • irregular,
  • wrongful,
  • forbidden,
  • Violating,
  • proscribed,
  • not legal,
  • outlawed,
  • illegitimate,
  • extralegal,
  • shady,
  • black-market,
  • unofficial,
  • verboten,
  • under the table,
  • lawless,
  • prohibited,
  • criminal,
  • felonious,
  • not approved.
  •indefensible (adjective)
  • inexpiable,
  • untenable,
  • bad,
  • wrong,
  • unpardonable,
  • faulty.
  •inexcusable (adjective)
  • intolerable,
  • censurable,
  • outrageous,
  • impermissible,
  • criticizable,
  • blameworthy,
  • unpermissible,
  • unallowable,
  • reprehensible,
  • blamable.
  •outlawed (adjective)
  • out-lawed,
  • out lawed.
  •undue (adjective)
  • unmeasurable,
  • indecorous,
  • inappropriate,
  • unseasonable,
  • disproportionate,
  • undeserved,
  • exceeding,
  • extreme,
  • inept,
  • sinister,
  • overmuch,
  • ill timed,
  • underhanded,
  • illtimed,
  • unsuitable,
  • unseemly,
  • inapt,
  • unfitting,
  • needless,
  • untimely,
  • intemperate,
  • too great,
  • ill-timed,
  • too much,
  • inordinate,
  • uncalled-for,
  • Unapt.
  •unreasonable (adjective)
  • stiff,
  • dear,
  • extortionate,
  • out of bounds,
  • senseless,
  • steep,
  • arbitrary,
  • peremptory,
  • posh,
  • way out,
  • far-out.
  •unreasoned (adjective)
  • irrational.
  •unwarranted (adjective)
  • unprovoked,
  • Foundationless,
  • ungrounded,
  • bottomless,
  • gratuitous.

• Other synonyms:

  •Other relevant words:
  • impolite,
  • informal,
  • idle,
  • objectionable,
  • preposterous,
  • excessive,
  • unallowed,
  • immoral,
  • unconscionable,
  • foolish,
  • not warranted,
  • unjustified,
  • wild,
  • unjust,
  • iniquitous,
  • exorbitant,
  • Triable,
  • contrary to law,
  • Injudicial,
  • unfit,
  • lazy,
  • chargeable,
  • absurd,
  • against the law,
  • under-the-counter,
  • improper,
  • anarchic,
  • punishable,
  • groundless,
  • deplorable,
  • unfair,
  • outlaw,
  • immoderate,
  • unfounded,
  • black market,
  • baseless,
  • extrajudicial,
  • Irremissible,
  • illogical,
  • extravagant,
  • anarchistic,
  • anomic,
  • flawed,
  • nonconstitutional,
  • nonlegal,
  • Justiciable,
  • inactive,
  • under-the-table,
  • rude.

Antonyms for Unwarrantable:

• adj.

  • illegal
    blessed, justifiable, lawful, authorized, legal, permitted, moral, permissible, ethical, legitimate, right, warranted, good, Allowed.
  • indefensible
    excusable, justified, defensible.
  • inexcusable
    forgivable, acceptable.
  • undue
    sensible, decent, fair, unprejudiced, proper, reasonable, appropriate, just, moderate, suitable, fitting.
  • unreasonable
    economical, pragmatic, low, logical, rational, realistic, practical, cheap, plain.
  • unwarranted
    called-for, proven.
  • Other antonyms:
    encouraged, tolerable, pardonable, endorsed, venial, virtuous, supported, approved, sanctioned.