不禁 bùjīn HSK6 cannot help Origin Definitions Defs Strokes Stroke Words Sentences Sents 忍俊不禁 rěnjùnbùjīn laughing cannot help laughing; unable to restrain a smile弱不禁风 ruòbùjīnfēng frail physically delicate or fragile; literally too weak to stand up to the wind