歯痒さ

• 読み: はがゆさ
• ローマ字: hagayusa
• 漢字の分解: 歯 (ha) — tooth; 痒 (yō/ka) — itchy; さ — nominalising suffix for i-adjectives
• 発音: /hagajɯsa/

意味

Frustration; vexation; the feeling of helpless irritation. The noun form expressing the sustained state of being unable to act or resolve something.

The nominalised form of 歯痒い (hagayui), formed by replacing the い ending with さ. Captures the sustained emotional state of frustration — particularly the helplessness of watching a problem persist without being able to fix it. Used in reflective or analytical speech to name and describe the feeling. Common in personal essays, introspective conversations, and literary prose where the speaker steps back to observe their own emotional state.

例文

1. 見ていられない歯痒さを感じながら、彼は黙って見守るしかなかった。
2. 語学の壁にぶつかるたびに、言葉にならない歯痒さがあった。
3. チームの不甲斐なさへの歯痒さが、彼女を奮起させた。

使い方ガイド

場面: self-reflection, language learning, sports, personal essays

トーン: frustrated

起源と歴史

Nominalised form of 歯痒い (hagayui), following the standard Japanese pattern of i-adjective → noun by replacing い with さ. The base word 歯痒い derives from 歯 (tooth) and 痒い (itchy).

文化的背景

時代: Modern

世代: All ages

社会的背景: Universal