1. I〔足がそれる〕lose one's footing; make a false step
    • 階段を踏み外して落ちた
    • He slipped [lost his footing] on the stairs and fell.
  1. II〔正しい道から外れる〕stray [deviate] from the right path
    • 成功への道を踏み外してしまった
    • He strayed [wandered] from the path of success.