imbecility

Definitions

A state of mental deficiency or feeblemindedness.

Great stupidity or foolishness; an act or remark that is utterly senseless.

Examples

It was pure imbecility to leave the front door unlocked while we were away on vacation.

The politician's latest proposal was dismissed by critics as an act of sheer imbecility.

Synonyms

stupidity foolishness idiocy fatuity asininity silliness vacuity

Antonyms

intelligence wisdom sagacity brilliance acumen sensibleness cleverness