Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings

to see; to catch sight of; to perceive visually

(bound form) ancient classics or authoritative books in general; famous writings by scholars or sages, as seen in the idiom 名不见经传 míng​bù​jiàn​jīng​zhuàn