不忿 bùfèn indignant Definitions Defs Origin Strokes Stroke Words Sentences Sents 不 bù adverb not 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忿 fèn noun anger (bound form) anger; indignation; to be angry or resentful