Synonyms for Illogical:

• adj.

  •absurd (adjective)
  • screwy,
  • ridiculous,
  • anachronistic,
  • crazy,
  • gagged up,
  • tomfool,
  • ludicrous,
  • joshing,
  • paradoxical,
  • illogical,
  • freaky,
  • off the wall,
  • impossible,
  • Daffy,
  • meaningless,
  • self-contradictory,
  • eccentric,
  • campier,
  • outlandish,
  • bizarre,
  • loony,
  • campiest,
  • laughable,
  • foolish,
  • irrational,
  • idiotic,
  • goofy,
  • preposterous,
  • flaky,
  • implausible,
  • batty,
  • nonsensical,
  • stupid,
  • farcical,
  • campy,
  • jokey,
  • for grins,
  • contradictory,
  • fooling around,
  • dippy.
  •all (adjective)
  • unlogical.
  •disconnected (adjective)
  • uncoordinated,
  • jumbled,
  • garbled,
  • muddled,
  • interrupted,
  • wandering,
  • separated,
  • broken,
  • irregular,
  • mixed-up,
  • rambling,
  • disjointed,
  • inchoate,
  • incoherent,
  • loose,
  • disordered,
  • detached,
  • unintelligible.
  •erroneous (adjective)
  • distorted,
  • incorrect,
  • faulty,
  • misjudged,
  • defective,
  • inaccurate,
  • misestimated,
  • Misconceived,
  • erroneous,
  • botched,
  • miscalculated,
  • Misconstrued,
  • marred,
  • false.
  •fallacious (adjective)
  • delusive,
  • illusory,
  • fishy,
  • Deluding,
  • deceptive,
  • fraudulent,
  • Deceiving,
  • phony,
  • delusory,
  • beguiling,
  • untrue,
  • unreal,
  • misleading,
  • fictitious.
  •far-fetched (adjective)
  • unnatural,
  • strained,
  • improbable,
  • unbelievable,
  • labored,
  • queer,
  • unlikely,
  • doubtful,
  • recondite,
  • suspicious,
  • unconvincing,
  • fantastic,
  • inconsequential,
  • incredible,
  • strange,
  • forced,
  • dubious,
  • unrealistic.
  •flimsy (adjective)
  • inconceivable,
  • puerile,
  • feeble,
  • unsatisfactory,
  • transparent,
  • thin,
  • poor,
  • inadequate,
  • trivial,
  • baseless,
  • superficial,
  • contemptible,
  • trifling,
  • assailable,
  • weakly,
  • weak,
  • wishful,
  • lame,
  • inept,
  • frivolous.
  •groundless (adjective)
  • causeless,
  • empty,
  • uncalled-for,
  • unsupported,
  • chimerical,
  • bottomless,
  • unwarranted,
  • uncalled for,
  • idle,
  • Foundationless,
  • gratuitous,
  • unauthorized,
  • unprovoked,
  • unjustified,
  • imaginary.
  •illogical (adjective)
  • hollow,
  • unproved,
  • irrelevant,
  • without foundation,
  • fatuous,
  • nutty,
  • without basis,
  • untenable,
  • inconclusive,
  • cockeyed,
  • not following,
  • wacky,
  • unsubstantial,
  • inconsequent.
  •impractical/impracticable (adjective)
  • otherworldly,
  • speculative,
  • inapplicable,
  • useless,
  • unattainable,
  • theoretical,
  • romantic,
  • infeasible,
  • unwise,
  • idealistic,
  • starry-eyed,
  • impracticable,
  • unfeasible,
  • abstract,
  • wild,
  • visionary,
  • irrealizable,
  • quixotic,
  • out of the question,
  • inefficacious.
  •inane (adjective)
  • vapid,
  • mindless,
  • harebrained,
  • vacant,
  • insipid,
  • worthless,
  • vain,
  • asinine,
  • jejune,
  • unintelligent,
  • vacuous,
  • flat,
  • imbecilic,
  • innocuous,
  • pointless,
  • futile,
  • daft,
  • wishy-washy.
  •incongruent (adjective)
  • in congruent,
  • in-congruent.
  •incongruous (adjective)
  • divergent,
  • foreign,
  • discordant,
  • uneven,
  • extraneous,
  • shifting,
  • unpredictable,
  • fitful,
  • unbecoming,
  • inappropriate,
  • unavailing,
  • disparate,
  • unsuitable,
  • inapt,
  • lopsided,
  • unbalanced,
  • unrelated,
  • irreconcilable,
  • alien,
  • twisted,
  • conflicting,
  • incompatible,
  • unsuited,
  • improper.
  •inconsistent (adjective)
  • in consistent,
  • dis-sonant,
  • un stabler,
  • un stable,
  • temperamental,
  • in-consistent,
  • dis sonant,
  • un-stable,
  • out step,
  • un-stabler,
  • un-stablest,
  • in-constant,
  • un stablest.
  •invalid (adjective)
  • illfounded,
  • more ill founded,
  • in-operative,
  • null void,
  • ill founded,
  • in-valid,
  • most illfounded,
  • more illfounded,
  • in operative,
  • null and void,
  • most ill-founded,
  • most ill founded,
  • more ill-founded,
  • in valid.
  •mad (adjective)
  • un-safe,
  • out ones mind,
  • out mind,
  • un safer,
  • out one mind,
  • un-safest,
  • un-hinged,
  • de ranged,
  • out one's mind,
  • un safe,
  • un safest,
  • off one rocker,
  • out of one mind,
  • out of ones mind,
  • un hinged,
  • off ones rocker,
  • de-ranged,
  • un-safer.
  •mistaken (adjective)
  • mis informed,
  • mis-guided,
  • in accurate,
  • more misunderstanding,
  • mis-interpreting,
  • mis-understanding,
  • mis taken,
  • mis judging,
  • misinformed,
  • off base,
  • mis-informed,
  • most misinterpreting,
  • more tricked,
  • more misconstrued,
  • mis-taken,
  • most duped,
  • mis construed,
  • un advised,
  • illadvised,
  • more misjudging,
  • barking wrong tree,
  • mis understanding,
  • most misconstrued,
  • most misinformed,
  • most misjudging,
  • mis guided,
  • wide mark,
  • most misunderstanding,
  • more misinterpreting,
  • unadvised,
  • mis-judging,
  • most tricked,
  • more duped,
  • mis-construed,
  • more misinformed,
  • mis interpreting,
  • un-advised.
  •obscure (adjective)
  • in decisive,
  • in definite,
  • in comprehensible,
  • un clearest,
  • in scrutable,
  • in distinct,
  • clear as mud,
  • in-soluble,
  • un fathomable,
  • in explicable,
  • in-decisive,
  • un defined,
  • farout,
  • in-scrutable,
  • in-distinct,
  • un-clear,
  • in-explicable,
  • enigmatical,
  • un-clearest,
  • un clear,
  • in-definite,
  • un accountable,
  • un-defined,
  • in soluble,
  • in determinate.
  •sappy (adjective)
  • in sane,
  • in-saner,
  • in-sane,
  • in saner,
  • in sanest.
  •scatterbrained (adjective)
  • empty headed,
  • in-attentive.
  •senseless (adjective)
  • Purportless,
  • doublespeak,
  • unmeaning.
  •silly (adjective)
  • more nitwitted,
  • most nitwitted,
  • most sheepheaded,
  • more sheepheaded,
  • muddle headed,
  • muddleheaded.
  •specious (adjective)
  • more casuistic,
  • most casuistic.
  •thoughtless (adjective)
  • thoughtless,
  • unoccupied,
  • brainless,
  • blank,
  • unthinking,
  • unthoughtful,
  • empty-headed.
  •unfounded (adjective)
  • unproven,
  • mendacious,
  • off-base.
  •unnegotiable (adjective)
  • un negotiable,
  • un-negotiable.
  •unreasonable (adjective)
  • quirky,
  • un-reasonable,
  • full hot air,
  • un reasonable.
  •unreasoned (adjective)
  • un-reasoned,
  • costing arm and a leg,
  • too too,
  • over much,
  • un-duer,
  • un fairer,
  • in-temperate,
  • un-just,
  • pricier,
  • un-justest,
  • over kill,
  • un duest,
  • most unrightful,
  • priciest,
  • un-lawful,
  • un-justifiable,
  • un-due,
  • un-conscionable,
  • un-fairer,
  • un-fair,
  • most tootoo,
  • costing an arm and leg,
  • most unwarrantable,
  • un just,
  • more too too,
  • most absonant,
  • tootoo,
  • costing arm leg,
  • more too-too,
  • un justifiable,
  • more tootoo,
  • un lawful,
  • most too-too,
  • more overkill,
  • costing arm and leg,
  • un rightful,
  • costing arm a leg,
  • in temperate,
  • un fairest,
  • more unrightful,
  • un fair,
  • un-fairest,
  • un warrantable,
  • un due,
  • un reasoned,
  • un conscionable,
  • un justest,
  • most too too,
  • un-juster,
  • over-kill,
  • un-duest,
  • more unwarrantable,
  • most overkill,
  • un-warrantable,
  • un-rightful,
  • costing an arm a leg,
  • costing an arm leg,
  • more absonant,
  • in-ordinate,
  • un juster.
  •unscientific (adjective)
  • un scientific,
  • un-scientific.
  •unsound (adjective)
  • in substantial,
  • in-substantial,
  • in secure,
  • un sounder,
  • un-steadiest,
  • un backed,
  • in-secure,
  • in-firmest,
  • dis-eased,
  • un-steadier,
  • more unbacked,
  • un-backed,
  • un soundest,
  • un healthiest,
  • not solid,
  • un steadier,
  • in securer,
  • un-sound,
  • in firmest,
  • un sound,
  • in firmer,
  • in-securer,
  • un steadiest,
  • un steady,
  • un-healthiest,
  • in securest,
  • un-soundest,
  • un-healthy,
  • un reliable,
  • dis eased,
  • most unbacked,
  • un-reliable,
  • un healthier,
  • in-securest,
  • un healthy,
  • in-firmer,
  • un-sounder.
  •untenable (adjective)
  • un supportable,
  • un-tenable,
  • un tenable,
  • un-supportable.
  •unthinkable (adjective)
  • extra ordinary,
  • in-supportable,
  • beyond belief,
  • Incogitable,
  • more incogitable,
  • un commonest,
  • un thinkable,
  • in-cogitable,
  • un-thinkable,
  • un-common,
  • un-commoner,
  • un-imaginable,
  • un-ordinary,
  • extra-ordinary,
  • un commoner,
  • in cogitable,
  • un common,
  • beyond possibility,
  • most incogitable,
  • un ordinary,
  • in supportable,
  • un imaginable.
  •unusable (adjective)
  • un usable,
  • un-usable.
  •unworkable (adjective)
  • un workable,
  • un-workable.

• n.

  •
  • childish,
  • perverse,
  • irresponsible,
  • extreme,
  • hysterical.
  •
  • reason.
  •confused (noun)
  • confused.
  •illogical (noun)
  • intuitive,
  • visceral,
  • nonrational,
  • scattered.
  •irrational (noun)
  • far-out,
  • fallible,
  • out of bounds,
  • wrong,
  • biased,
  • jesuitical,
  • dopey,
  • not ringing true,
  • prejudiced,
  • paralogistic,
  • without rhyme or reason,
  • kafkaesque,
  • having the cart before the horse.

• Other synonyms:

  •
  • analytical.
  •
  • spurious.
  •bizarre
  • surrealistic.
  •illogical
  • illegitimate.
  •repetitious
  • tautological.

Paraphrases for Illogical:

• Equivalence

  • Adjective
    irrational, unreasonable, absurd, counterintuitive, incoherent.

• Forward Entailment

  • Adjective
    logical.

• Independent

  • Adjective
    paradoxical, preposterous, incongruous, contradictory, ludicrous, senseless, rational, ridiculous, foolish, pointless, unjustifiable, perverse, meaningless, crazy, insane, unjustified, unwise, reasonable, unwarranted, mindless.

• Other Related

  • Adjective
    nonsensical, inconsistent.

Antonyms for Illogical:

• adj.

  • absurd
    certain, wise.
  • all
    logical.
  • disconnected
    continuous, intelligible, coherent, attached, joined, understandable, connected.
  • fallacious
    truthful, real, true.
  • far-fetched
    believable, realistic, natural, plausible.
  • flimsy
    strong, convincing, serious.
  • groundless
    justified, called-for, Grounded, proven, warranted.
  • illogical
    meaningful, reasonable, right, rational, sensible, correct.
  • impractical/impracticable
    practicable, viable, tenable, practical, probable.
  • inane
    smart, bright, intelligent.
  • incongruous
    compatible, harmonious, corresponding, uniform, suitable, matched, consistent, fitting, congruous.
  • Other antonyms:
    established, cogent, sane, ordered, formal, enlightened, compelling, substantiated, validated, sober, ratiocinative, commonsense, reasoned, confirmed, persuasive, clear, well-founded, just, solid, demonstrated, discursive, dianoetic, corroborated, organized, satisfying, informed, sure, well-grounded, credible.