情緒不安定

Japanese Slang Japanese ★★★ 3/5 casual じょうちょふあんていjōcho fuantei
読み じょうちょふあんてい
ローマ字 jōcho fuantei
漢字の分解 情 (emotion) + 緒 (thread/beginning) + 不 (not) + 安 (peace) + 定 (stable) → emotional instability
発音 /dʑoː.t͡ɕo.ɸɯ.a.ɴ.te.i/

意味

Emotionally unstable — used self-deprecatingly when your mood swings wildly or you can't control your feelings.

Originally a clinical/psychological term meaning 'emotional instability,' 情緒不安定 was adopted into casual self-description on social media. People use it humorously to describe days when their mood swings from laughing to crying, or when small things trigger outsized emotional reactions. The self-deprecating tone is key — it is almost always used about oneself, not as a diagnosis of others.

例文

  1. 今日情緒不安定すぎて、CMで泣いた。
  2. 生理前で情緒不安定だからそっとしといて。
  3. さっきまで笑ってたのに急に泣きたくなった、情緒不安定。

使い方ガイド

場面: social media, friends, self-deprecation

トーン: self-deprecating, humorous

正しい言い方

  • 最近情緒不安定で困ってる。 (I've been emotionally unstable lately and it's a problem.)
  • 情緒不安定な日はアイス食べて寝る。 (On emotionally unstable days I eat ice cream and sleep.)

避ける言い方

  • 他人に向かって「情緒不安定だね」は失礼 (Saying 'you're jōcho fuantei' to someone else is rude — it is acceptable as self-deprecation, not as a label for others)
  • 本当に心配な状態の人にふざけて使わない (Don't use it jokingly about someone who is genuinely struggling with mental health)

よくある間違い

  • Using it to describe others instead of yourself — the casual usage is almost exclusively self-deprecating
  • Taking it too literally when someone posts it on social media — it is usually humorous exaggeration, not a cry for help

起源と歴史

Clinical term 情緒不安定 (emotional instability) adopted as casual self-description. Common on SNS as a humorous way to acknowledge one's own mood swings.

文化的背景

時代: Clinical term, casual usage from 2010s social media

世代: Teens to 30s on social media

社会的背景: Internet/SNS culture

地域メモ: Used across Japan on social media platforms. Part of a broader trend of young Japanese people using clinical or medical terminology in a self-deprecating, humorous way to describe everyday emotional experiences.

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