気分（きぶん、kibun）
- feeling / mood

The Japanese word 気分気分, pronounced きぶん, primarily refers to one's "feeling," "mood," or "state of mind." It encompasses a wide range of emotional and psychological states. It can describe a general feeling, a specific emotion, or one's overall disposition at a particular time. The word can also refer to one's physical condition or how one feels physically. Think of it as the inner experience of a person.

⚫︎ 今日は気分がいいです。 Translation: I feel good today. ⚫︎ 彼女は少し気分が悪いみたいです。 Translation: She seems to feel a little unwell. ⚫︎ この音楽を聴くと、気分転換になります。 Translation: Listening to this music refreshes my mood.

⚫︎ 気分気分 is a versatile word, suitable for both formal and informal situations. ⚫︎ It's often used when talking about how you or someone else feels. ⚫︎ It can be modified with adjectives to be more specific (e.g., 良い気分気分 - good mood, 悪い気分気分 - bad mood). ⚫︎ It can be used to describe the atmosphere or environment, implying a "feeling" or "vibe" associated with it. For instance, パーティーの気分気分 (the party atmosphere/vibe). ⚫︎ It's common to use 気分気分 with verbs like なる (to become/to feel) or がする (to feel/to have a feeling).

⚫︎ The word is typically written in kanji as 気分気分. ⚫︎ The reading is きぶん, using hiragana. ⚫︎ There is no common alternate writing. ⚫︎ The okurigana (hiragana following the kanji) is fixed; there are no variations.

⚫︎ 気持ち（きもち） - feeling, emotion (more general and less focused on mood) ⚫︎ 感情（かんじょう） - emotion, feeling (more formal and refers to a specific emotion) ⚫︎ 心境（しんきょう） - mental state, state of mind (more serious and formal) ⚫︎ 心持ち（こころもち） - feeling, state of mind

There aren't direct antonyms, but you could consider words that describe opposite states: ⚫︎ 不快（ふかい） - discomfort ⚫︎ 不安（ふあん） - anxiety ⚫︎ 不機嫌（ふきげん） - bad mood, displeasure

試験の結果が悪かったので、今日はあまりいい気分じゃない。 ・Translation: I don't feel very good today because the exam results were bad. ・Explanation: This sentence uses 気分気分 to describe a negative feeling (not feeling good) caused by a specific situation (bad exam results).

新しいカフェで美味しいコーヒーを飲んで、とても良い気分になりました。 ・Translation: I felt really good after drinking delicious coffee at the new cafe. ・Explanation: This sentence explains how the speaker's 気分気分 (mood) was improved by a positive experience (drinking good coffee).

気気 means "spirit," "mind," or "energy," and 分分 means "part" or "segment". When combined, 気分気分 refers to the "state of the mind" or how one's spirit is distributed or divided, reflecting one's feelings or mood.