百无一失 bǎi wú yī shī

DEFINITIONS

  1. no danger of anything going wrong
  2. no risk at all

CHARACTERS

百 bǎi
HSK 2
one hundred; numerous, many
无 wú
HSK 4
negative, no, not; KangXi radical 71
一 yī
HSK 1
one; a, an; alone
失 shī
HSK 4
lose; make mistake, neglect