noun, na-adjective
unenlightened; profoundly ignorant
A yojijukugo describing a state of deep ignorance and lack of wisdom. Often used in formal or literary contexts to criticize someone's lack of knowledge or enlightenment.
彼の無知愚昧な発言には驚かされた。
I was shocked by his unenlightened remarks.
無知愚昧をさらけ出すような行動は避けるべきだ。
You should avoid behavior that exposes your profound ignorance.
A yojijukugo composed of 無知 (ignorance) and 愚昧 (foolishness). The exact historical derivation is uncertain, but it follows the common pattern of combining two two-character compounds to intensify the meaning.