Hilaire Belloc

An institute run with such knavish imbecility that if it were not the work of God it would not last a fortnight.

English Poet

The rest, called literature, is a dossier of human imbecility for the guidance of future professors.

A sublime faith in human imbecility has seldom led those who cherish it astray.

Used to express strong disapproval of someone's behavior or decisions.

The term is sometimes used hyperbolically to criticize minor mistakes.

Avoid directly calling someone 'imbecility'; it's rude and could offend.

Be careful, calling a person 'an imbecility' is grammatically incorrect; use 'imbecile'.

Calling someone 'an imbecility' is a severe insult and should be avoided in polite conversation.

The word can be seen as offensive in some cultures; use with awareness of your audience.

Used in a medical or psychological context, refers to cognitive impairments.

The term is outdated in medical use and can be considered offensive; use modern terms.

Avoid using 'imbecility' to refer to someone's mistake in a non-medical sense.