勃然 bórán suddenly Definitions Defs Origin Strokes Stroke Words Sentences Sents bórán suddenly · agitatedly 勃 bó verb suddenly (bound form) suddenly; abruptly, as in a sudden change of facial expression or mood然 rán adverbadjective [state] Used as a suffix after an adjective or adverb to describe a state or manner, similar to the English suffix "-ly".bórán vigorously 勃 bó adjective prosperous (bound form) flourishing; thriving; full of life or vigor然 rán adverbadjective [state] Used as a suffix after an adjective or adverb to describe a state or manner, similar to the English suffix "-ly".