also: きぶんがよい
expression, i-adjective (yoi/ii class)
feel good; in a good mood; pleasant
Describes a subjective feeling of physical or mental well-being, comfort, or pleasantness. Often used when one's mood is lifted or when something feels nice.
Antonyms: 気分が悪い
今日は天気が良くて気分がいい。
The weather is nice today, so I feel good.
散歩したら気分が良く
I felt better after taking a walk.
Phrase composed of 気分 (mood, feeling) + が (subject marker) + いい (good). The adjective いい is the colloquial form of よい.