Thesaurus
lunacy
lunacy
noun
Definition of LUNACY
1
a foolish act or idea <you want to sneak into the building after the alarm is set—what lunacy!>
Synonyms absurdity, asininity, bêtise, fatuity, foolery, foppery, idiocy, imbecility, inanity, insanity, lunacy, stupidity
Related Words absurdness, craziness, foolishness, inaneness, madness, senselessness, witlessness; buffoonery, monkeyshine(s), shenanigan(s), tomfoolery; drivel, humbug, nonsense, twaddle; blunder, bungle, flub, goof, howler
2
a serious mental disorder that prevents one from living a safe and normal life <the judge ruled that the certified lunacy of the accused made him incompetent to stand trial>
Related Words neurosis, psychosis; instability, irrationality, unreasonableness; delirium, frenzy, hysteria; hallucinosis, hypomania, paranoia, schizophrenia; senile dementia; delusion, hallucination; monomania, obsession, phobia; abnormality, dementedness, unsoundness
Near Antonyms lucidity, rationality, rationalness, reasonability, reasonableness; normality, soundness
3
lack of good sense or judgment <our friend's good-natured lunacy makes him of no use in an emergency but very entertaining companion nevertheless>
Synonyms absurdity, asininity, balminess, brainlessness, craziness, daftness, dippiness, dottiness, fatuity, fatuousness, folly, imbecility, inanity, insanity, lunacy, madness, nonsensicalness, nuttiness, preposterousness, senselessness, silliness, simplicity, unwisdom, wackiness, witlessness, zaniness
Related Words denseness, dim-wittedness, doltishness, dopiness, dullness (also dulness), dumbness, feeblemindedness, gormlessness [chiefly British], idiocy, mindlessness, oafishness, obtuseness, simplemindedness, simpleness, slowness, stupidity, stupidness, vacuity; fallacy, irrationality, unreasonableness; kookiness, weirdness; laughableness, ludicrousness, ridiculousness
Near Antonyms logicality, logicalness, rationality, rationalness, reasonability, reasonableness, validity; discernment, insight, perception, percipience
Antonyms prudence, sagaciousness, sagacity, sageness, sanity, sapience, sensibleness, soundness, wisdom
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