All irrational synonyms
irΒ·raΒ·tionΒ·al
I i adj irrational
- insane β not sane; not of sound mind; mentally deranged.
- crazy β If you describe someone or something as crazy, you think they are very foolish or strange.
- stupid β lacking ordinary quickness and keenness of mind; dull.
- incoherent β without logical or meaningful connection; disjointed; rambling: an incoherent sentence.
- unreasonable β not reasonable or rational; acting at variance with or contrary to reason; not guided by reason or sound judgment; irrational: an unreasonable person.
- preposterous β completely contrary to nature, reason, or common sense; absurd; senseless; utterly foolish: a preposterous tale.
- unsound β not sound; unhealthy, diseased, or disordered, as the body or mind.
- wrong β not in accordance with what is morally right or good: a wrong deed.
- ridiculous β causing or worthy of ridicule or derision; absurd; preposterous; laughable: a ridiculous plan.
- absurd β If you say that something is absurd, you are criticizing it because you think that it is ridiculous or that it does not make sense.
- unwise β not wise; foolish; imprudent; lacking in good sense or judgment: an unwise choice; an unwise man.
- foolish β resulting from or showing a lack of sense; ill-considered; unwise: a foolish action, a foolish speech.
- aberrant β Aberrant means unusual and not socially acceptable.
- wild β living in a state of nature; not tamed or domesticated: a wild animal; wild geese.
- loony β lunatic; insane.
- raving β extravagantly flattering or enthusiastic: rave reviews of a new play.
- silly β weak-minded or lacking good sense; stupid or foolish: a silly writer.
- invalid β an infirm or sickly person.
- brainless β If you describe someone or something as brainless, you mean that you think they are stupid.
- delirious β Someone who is delirious is unable to think or speak in a sensible and reasonable way, usually because they are very ill and have a fever.
- demented β Someone who is demented has a severe mental illness, especially Alzheimer's disease.
- disconnected β disjointed; broken.
- disjointed β Mathematics. (of two sets) having no common elements. (of a system of sets) having the property that every pair of sets is disjoint.
- distraught β distracted; deeply agitated.
- fallacious β containing a fallacy; logically unsound: fallacious arguments.
- flaky β of or like flakes.
- injudicious β not judicious; showing lack of judgment; unwise; imprudent; indiscreet: an injudicious decision.
- mad β mentally disturbed; deranged; insane; demented.
- mindless β without intelligence; senseless: a mindless creature.
- nonsensical β (of words or language) having little or no meaning; making little or no sense: A baby's babbling is appealingly nonsensical.
- nutty β abounding in or producing nuts.
- specious β apparently good or right though lacking real merit; superficially pleasing or plausible: specious arguments.
- unstable β not stable; not firm or firmly fixed; unsteady.
- unthinking β thoughtless; heedless; inconsiderate: an unthinking, tactless person.
- wacky β odd or irrational; crazy: They had some wacky plan for selling more books.
- freaky β freakish.
- kooky β of, like, or pertaining to a kook; eccentric, strange, or foolish.
- sophistic β of the nature of sophistry; fallacious.
- cockamamie β If you describe something as cockamamie, you mean that it is ridiculous or silly.
- off-the-wall β markedly unconventional; bizarre; oddball: an unpredictable, off-the-wall personality.
- reasonless β not having any reason or sense: an utterly reasonless display of anger.
adjective irrational
- illogical β not logical; contrary to or disregardful of the rules of logic; unreasoning: an illogical reply.
- unfounded β without foundation; not based on fact, realistic considerations, or the like: unfounded suspicions.
- senseless β destitute or deprived of sensation; unconscious.
- groundless β without rational basis: groundless fears.
- baseless β If you describe an accusation, rumour, or report as baseless, you mean that it is not true and is not based on facts.