chéng​xìng'ér​lái

to come on an impulse

Senses

乘兴而来/ 乘興而來 chéng​xìng'ér​lái to come on an impulse

to come or arrive while in high spirits; to act on the whim of the moment

References

antonym 乘兴而来/乘興而來 败兴而归/敗興而歸
see 乘兴而来/乘興而來 兴尽而返/興盡而返