気が抜ける

きがぬける

Meanings

  1. Expression, Ichidan verb to lose heart; to lose interest; to lose motivation; to be discouraged
  2. to become stale (i.e. of a carbonated beverage); to go flat; to lose flavor; to lose flavour; to be exhausted; to feel spent
  3. to lose focus; to let one's guard down; to become absent-minded See also: 気を抜く (きをぬく).

Kanji

Jinuma: Japanese Dictionary · Word lists