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

(bound form) to satisfy; to fulfill (one's wishes); to succeed; to achieve

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

used in the term 半身不遂 bàn​shēn​bù​suí (paralysis on one side of the body)