Definition for Illogical:

• Contrary to the rules of logic or sound reasoning.

Synonyms for Illogical:

• adj.

  •absurd (adjective)
  • crazy,
  • eccentric,
  • contradictory,
  • ridiculous,
  • implausible,
  • foolish,
  • batty,
  • outlandish,
  • self-contradictory,
  • idiotic,
  • irrational,
  • screwy,
  • bizarre,
  • nonsensical,
  • ludicrous,
  • Daffy,
  • meaningless,
  • anachronistic,
  • dippy,
  • preposterous,
  • laughable,
  • paradoxical,
  • stupid,
  • impossible,
  • farcical.
  •all (adjective)
  • unlogical.
  •disconnected (adjective)
  • disordered,
  • loose,
  • garbled,
  • jumbled,
  • muddled,
  • mixed-up,
  • disjointed,
  • rambling,
  • incoherent,
  • unintelligible,
  • uncoordinated,
  • broken.
  •erroneous (adjective)
  • distorted,
  • incorrect,
  • faulty,
  • misjudged,
  • defective,
  • inaccurate,
  • misestimated,
  • Misconceived,
  • erroneous,
  • botched,
  • miscalculated,
  • Misconstrued,
  • marred,
  • false.
  •fallacious (adjective)
  • delusive,
  • illusory,
  • unreal,
  • delusory,
  • untrue,
  • deceptive.
  •far-fetched (adjective)
  • improbable,
  • unrealistic,
  • inconsequential,
  • unlikely.
  •flimsy (adjective)
  • weak,
  • baseless,
  • puerile.
  •groundless (adjective)
  • unjustified,
  • unwarranted.
  •illogical (adjective)
  • inconclusive,
  • hollow,
  • unsubstantial,
  • unproved,
  • cockeyed,
  • inconsequent,
  • fatuous,
  • wacky,
  • nutty,
  • not following,
  • without basis,
  • irrelevant,
  • untenable.
  •impractical/impracticable (adjective)
  • quixotic,
  • wild,
  • visionary,
  • romantic,
  • unwise.
  •inane (adjective)
  • daft,
  • pointless,
  • unintelligent,
  • imbecilic,
  • vacuous,
  • mindless,
  • vacant,
  • asinine.
  •incongruous (adjective)
  • conflicting.
  •thoughtless (adjective)
  • thoughtless,
  • unoccupied,
  • brainless,
  • blank,
  • unthinking,
  • unthoughtful,
  • empty-headed.

• n.

  •
  • perverse,
  • childish,
  • irresponsible.
  •illogical (noun)
  • confused,
  • visceral,
  • scattered,
  • intuitive,
  • nonrational.
  •irrational (noun)
  • fallible,
  • wrong.

• Other synonyms:

  •
  • spurious.
  •illogical
  • illegitimate.

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.