A formal, somewhat literary term for a lack of intelligence or knowledge. Often used in written or critical contexts.
Everyone was astonished by his foolish remarks.
That policy treats the people as ignorant.
ordinary and ignorant; mediocre and stupid
unenlightened; profoundly ignorant
A Sino-Japanese compound of 愚 (foolish) and 昧 (dark, ignorant). The exact historical derivation is uncertain, but the combination has been used in classical Chinese and later adopted into formal Japanese.