idiocy
Definitions
Extremely foolish or senseless behavior.
A state of utter lack of intelligence or common sense.
Examples
It was pure idiocy to drive through the flooded road without checking the depth first.
The decision to cancel the project at the last minute was an act of absolute idiocy.
He realized the idiocy of his earlier remarks once he saw how much he had offended his colleagues.
Synonyms
folly stupidity foolishness imbecility absurdity silliness asininity
Antonyms
wisdom intelligence sanity sense prudence brilliance sagacity