メンタル弱い

Japanese Slang Japanese ★★★★ 4/5 casual メンタルよわいmentaru yowai
Reading メンタルよわい
Romaji mentaru yowai
Kanji breakdown メンタル (from English 'mental') + 弱い (weak) → mentally fragile, easily affected
Pronunciation /me.ɴ.ta.ɾu.jo.wa.i/

Meaning

Mentally fragile or emotionally sensitive — easily stressed, hurt, or overwhelmed.

メンタル弱い describes someone who is easily affected by criticism, pressure, or negative events. It is very commonly used as self-deprecating language — people describing themselves as メンタル弱い to explain why certain situations are difficult for them. While it can be used about others, using it to describe someone else directly can sound judgmental. The rise of mental health awareness has made some people push back on using メンタル弱い negatively, arguing sensitivity is not a weakness.

Examples

  1. 自分メンタル弱いから、ちょっと注意されただけで凹む。 I'm mentally fragile, so even a little criticism gets me down.
  2. メンタル弱いのわかってるけど、どうしても人の目が気になる。 I know I'm mentally sensitive, but I just can't stop worrying about what people think.
  3. メンタル弱い自覚あるから、SNSのコメント欄は見ないようにしてる。 I know I'm mentally fragile, so I try not to read comments on social media.

Usage Guide

Context: friends, social media, self-reflection

Tone: self-deprecating, candid

Do Say

  • 自分メンタル弱いの自覚してるから、無理しないようにしてる。 (I know I'm mentally fragile, so I try not to push myself.)
  • メンタル弱い人は一人の時間が必要なんだよね。 (People who are mentally sensitive need alone time.)

Don't Say

  • 他人に「メンタル弱いね」と直接言うのは失礼 (Directly telling someone 'you're mentally weak' is hurtful — only use about yourself)

Common Mistakes

  • Using メンタル弱い as an insult — it is generally used for self-description or empathetic discussion, not to put others down

Origin & History

Combination of メンタル (from English 'mental') + 弱い (weak). Emerged alongside メンタル強い as casual mental health vocabulary spread in the 2010s.

Cultural Context

Era: 2010s with normalization of mental health vocabulary

Generation: All ages, especially teens to 30s

Social background: Universal

Regional notes: Used across all of Japan. Increasingly discussed in the context of mental health awareness, with some arguing the term should not carry negative connotations.

Related Phrases

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