1.
dissatisfaction; discontent
A feeling of being unsatisfied or unhappy with a situation, decision, or treatment.
2.
objection; protest; complaint
A formal or explicit expression of disagreement or opposition, especially toward a ruling, judgment, or decision.
Combines 不 (non-/un-) and 服 (submission/obedience), literally meaning "not submitting" or "not accepting." Can be used both as a noun and as a な-adjective.
Common collocations
- 不服を申し立てる: file an objection/appeal
- 不服を感じる: feel dissatisfied
- 不服な顔: a dissatisfied face
- 不服を唱える: voice an objection
- 判決に不服: objection to a verdict
Usage
In legal and administrative contexts, 不服申し立て is a formal appeal process. In everyday conversation, it describes a feeling of discontent or unwillingness to accept something.