What is the opposite of rationality?

Need antonyms for rationality? Here's a list of opposite words from our thesaurus that you can use instead.

Contexts ▼▲ Opposite of the extent to which someone or something is capable of reasoning Opposite of the logic or reason for a decision or way of thinking Opposite of the state of having a normal healthy mind Opposite of the quality of being logically or factually sound Opposite of the quality of being logical or rational Opposite of the state or fact of being logical or rational Opposite of a concept formulated in the mind Opposite of worthy of one's trust or confidence (mass noun) Opposite of the power of the mind to think, understand, and form judgments logically Opposite of the fact or state of being rational or level-headed Opposite of the state of being mentally sound Opposite of the quality of not being partisan, of remaining politically independent Opposite of the pursuit of practicality over aesthetic qualities Opposite of the quality of having experience, knowledge, and good judgment … more ▼ ▲ Noun ▲ Opposite of the extent to which someone or something is capable of reasoning irrationality absurdity foolishness senselessness insanity preposterousness craziness illogicality ludicrousness unreasonableness ridiculousness illogicalness impracticality pointlessness unreason unsoundness lack of judgment Noun ▲ Opposite of the logic or reason for a decision or way of thinking meaninglessness worthlessness vanity futility emptiness purposelessness lostness pointlessness inanity needlessness uselessness impracticality fruitlessness unnecessariness unnecessity senselessness stupidity gratuitousness irrelevance aimlessness inapplicability inconsequence inappositeness insignificance irrelevancy unimportance impertinence triviality Noun ▲ Opposite of the state of having a normal healthy mind insanity dementia lunacy madness derangement mania unreason craziness ignorance inability ineptness instability misinterpretation mistake misunderstanding unreasonableness unsoundness mental derangement imprudence stupidity irrationality foolishness folly indiscretion senselessness asininity disbelief idiocy imbecility impracticality silliness nonsense indecision misjudgement misjudgment injudiciousness irresponsibility unwiseness improvidence inadvisability inanity insensibility unwariness nonsensicalness illogicality incaution fatuousness fatuity unwisdom simplicity brainlessness bad judgment reality truth ineptitude misguidedness ludicrousness absurdity physicality more ❯ Noun ▲ Opposite of the quality of being logically or factually sound invalidity impotence incompetence ineffectiveness lethargy uselessness weakness ineffectuality ineffectualness inconclusiveness illogicality vagueness disability Noun ▲ Opposite of the quality of being logical or rational incoherence difference disagreement discord divorce incongruity inconsistency nonconformity nonsense unintelligibility Noun ▲ Opposite of the state or fact of being logical or rational confusion Noun ▲ Opposite of a concept formulated in the mind fact basis actuality existence certainty truth knowledge realism representativeness verity reality veracity certitude evidence genuineness matter palpability verisimilitude materiality tangibility “The importance of this decision resides in the fact that it relates to people across the country.” Noun ▲ Opposite of worthy of one's trust or confidence unreliability irresponsibility untrustworthiness distrust deceitfulness deviousness dishonesty dodginess independability undependability unreliableness “All he had to show for his service was a record of unreliability.” Noun ▲ (mass noun) Opposite of the power of the mind to think, understand, and form judgments logically emotion feeling instinct sentiment affection ardorUS ardourUK fervourUK fervorUS passion rapture sentimentality spirit zeal “The belief in a higher being is largely rooted in deep emotion.” Noun ▲ Opposite of the fact or state of being rational or level-headed fancy Noun ▲ Opposite of the state of being mentally sound insanity lunacy madness psychopathy psychosis neurosis derangement mania dementedness dementia instability craziness insaneness unbalance crazedness deliration delusion aberration hallucination delirium unreasonableness loss of reason mental derangement mental disorder mental illness unsoundness of mind “I visited him several times in prison and expressed my positive opinion that his insanity was feigned.” Noun ▲ Opposite of the quality of not being partisan, of remaining politically independent bias favorUS favouritismUK favoritismUS favourUK nonobjectivity one-sidedness partiality partisanship prejudice artifice corruption deception discourtesy disgrace dishonesty dishonorUS dishonourUK disregard disrespect falsehood immorality impoliteness impropriety indecency injustice lying rudeness treachery unfairness unjustness wrong bad manners Noun ▲ Opposite of the pursuit of practicality over aesthetic qualities idealism contemplation Noun ▲ Opposite of the quality of having experience, knowledge, and good judgment ignorance absurdity folly stupidity idiocy inability ineptness cluelessness incomprehension naivete brainlessness nescience senselessness unfamiliarity bewilderment injudiciousness instability thoughtlessness benightedness dumbness illiteracy obtuseness thickness dopiness incognizance philistinism silliness unawareness bêtise disregard incapacity obliviousness dimness indiscretion rawness simplicity unscholarliness imprudence oblivion uncouthness vagueness daftness denseness sciolism shallowness witlessness callowness foolishness inexperience mindlessness unconsciousness unintelligence empty-headedness mental darkness mental incapacity slow-wittedness lack of education lack of intelligence lack of knowledge “He displayed his ignorance by asking irrelevant questions.” Find more words! 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Sentences with the word rationality Words that rhyme with rationality What is the plural of rationality? What is the adverb for rationality? What is the adjective for rationality? What is the noun for rationality? Translations for rationality Use our Antonym Finder Nearby Words rationalization rationalizations rationalize rationalized rationalizes rationalizing rationalities rationalists rationalistic rationalist rationalisms rationalism 11-letter Words Starting With r ra rat rati ratio ration rationa rational rationali rationalit