昧 (mèi) rarely appears as a free-standing verb; it's primarily a bound morpheme in fixed phrases and chengyu. The core verb sense is 'to conceal' or 'to go against' – you'll see it in 昧着良心 (act against one's conscience) and 拾金不昧 (not keep found money). It also forms the second element of common adjectives like 愚昧 (ignorant), 冒昧 (presumptuous), and 暧昧 (ambiguous), where it contributes 'clouded, unclear, or rash'. Because the raw dictionary gloss lists scattered English equivalents without context, this description helps you map them onto actual Chinese usage patterns.