万无一失 wàn wú yī shī — absolutely safe; no risk at all; foolproof

万无一失
wàn wú yī shī

Characters: 万 · 无 · 一 · 失

Definitions

  1. absolutely safe; no risk at all; foolproof

More definitions

CC-CEDICT

  1. surefire
  2. absolutely safe (idiom)

ExtDict

  1. 失：差错。指非常有把握，绝对不会出差错。

Examples

  • 计划周密，万无一失。

    The plan is thorough and foolproof.

  • 这样做才能万无一失。

    Only by doing so can it be foolproof.