Synonyms of imbecility

imbecility

noun

ˌim-bə-ˈsi-lə-tē 

1

as in insanity

a foolish act or idea

was arrested for the sheer imbecility of speeding down a dark road with no headlights on

Synonyms & Similar Words

• insanity
• idiocy
• absurdity
• stupidity
• madness
• foppery
• inanity
• bêtise
• folly
• lunacy
• asininity
• fatuity
• foolery
• craziness
• buffoonery
• blunder
• witlessness
• absurdness
• foolishness
• tomfoolery
• nonsense
• twaddle
• senselessness
• inaneness
• drivel
• shenanigan(s)
• monkeyshine(s)
• bungle
• humbug
• flub
• goof
• howler

Antonyms & Near Antonyms

• wisdom
• discretion
• sagacity
• prudence
• forethought
• inspiration
• brainstorm

2

as in madness

lack of good sense or judgment

we were stunned by the imbecility of the ideas presented by this once-respected biologist

Synonyms & Similar Words

• insanity
• madness
• simplicity
• absurdity
• foolishness
• fatuousness
• unwisdom
• craziness
• inanity
• witlessness
• daftness
• preposterousness
• lunacy
• zaniness
• folly
• stupidity
• silliness
• wackiness
• brainlessness
• fatuity
• stupidness
• dottiness
• nuttiness
• asininity
• idiocy
• senselessness
• nonsensicalness
• balminess
• feeblemindedness
• obtuseness
• dumbness
• dullness
• mindlessness
• oafishness
• irrationality
• unreasonableness
• slowness
• simpleness
• dippiness
• dopiness
• simplemindedness
• ridiculousness
• denseness
• vacuity
• doltishness
• fallacy
• ludicrousness
• kookiness
• weirdness
• gormlessness
• dim-wittedness
• laughableness

Antonyms & Near Antonyms

• sagacity
• sanity
• prudence
• wisdom
• soundness
• rationality
• sapience
• validity
• reasonableness
• sensibleness
• sagaciousness
• logicality
• reasonability
• perception
• insight
• sageness
• discernment
• logicalness
• rationalness
• percipience

Example Sentences

Recent Examples of imbecility

When Constanze reaches her breaking point, Mozart’s imbecility is exposed as fragility. — Theater Critic, Los Angeles Times, 18 Feb. 2026