idiocy

noun

Etymology: From French idiotie, from Old French idiot. Displaced earlier idiotacy, idiotry. Equivalent to idiot + -cy. By surface analysis, idio- + -cy.

1. The state or condition of being an idiot; the quality of having an intelligence level far below average.
2. Lack of intelligence or sense; extremely foolish behaviour.

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

3. An idiotic act or utterance.

   ““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.”

   “The list of his idiocies is seemingly interminable.”