idiocy

plural idiocies · alternative archaic idiotcy

1. countabledatedderogatoryuncountablehuman sciencesThe state or condition of being an idiot; the quality of having an intelligence level far below average.

   Synonyms: idioticness, imbecility, moronicity, mental retardation, intellectual disability

2. uncountableLack of intelligence or sense; extremely foolish behaviour.

   The administrators, growing tired of such idiocy, put a new policy in place.

   Synonyms: idioticness, imbecility, moronicity

3. countableAn idiotic act or utterance.

   The list of his idiocies is seemingly interminable.

   1 more example

   “Well, Atticus, I was just sayin‘ to Mr. Cunningham that entailments are bad an’ all that, but you said not to worry, it takes a long time sometimes… that you all’d ride it out together…” I was slowly drying up, wondering what idiocy I had committed.

   1960 July 11, Harper Lee, To Kill a Mockingbird, Philadelphia, Pa.; New York, N.Y.: J[oshua] B[allinger] Lippincott Company, →OCLC