ぼんようぐまい 凡庸愚昧 LinksSentence search for 凡庸愚昧Sentence search for ぼんようぐまいKanji details for 凡, 庸, 愚 and 昧Edit in JMdict Noun, Na-adjective (keiyodoshi), Noun which may take the genitive case particle 'no'1. ordinary and ignorant; mediocre and stupid Discussions Log in to talk about this word.