出沒無常 chū mò wú cháng

DEFINITIONS

  1. to appear and disappear unpredictably

CHARACTERS

出 chū
HSK 1
go out, send out; stand; produce
沒 mò not, have not, none; to drown, sink
無 wú negative, no, not; lack, have no
常 cháng
HSK 2
common, normal, frequent, regular