1.
to lose out; to be worse off; to take a loss
To end up worse off than one otherwise would — paying more, wasting effort, or missing an advantage. The direct opposite of 得をする.
The loss is often financial, but the phrase covers any disadvantage — wasted time, unfair treatment, or a missed opportunity. 損 also works as a na-adjective (損な役回り, a thankless role).
Common patterns
- ...ないと損をする: you lose out if you don't ...
- 損をした気分: the feeling of having been shortchanged
- 損して得取れ: take a small loss to win a bigger gain (proverb)