万无一失 wàn wú yī shī

surefire; absolutely safe (idiom)

Word data

HSK Not in HSK
Frequency 12475th word

Definitions

  1. 1. surefire; absolutely safe (idiom)

Characters

Character Meaning
万 wàn HSK 3
ten thousand; a great number; surname Wan
无 wú HSK 4
not; no; not to have
一 yī HSK 1
one; 1; single
失 shī HSK 4
to lose; to miss; to fail