甲斐甲斐しい

• 読み: かいがいしい
• ローマ字: kaigaishii
• 漢字の分解: 甲斐 (kai) — worth, effort, result; 甲斐 — repeated for intensification; しい — adjective suffix
• 発音: /ka.i.ɡa.i.ɕi.i/

意味

Diligent and devoted; industrious in caring for others; assiduous. Describes someone who works earnestly and selflessly for another person's sake.

An i-adjective formed by reduplicating 甲斐 (worth, effect) with the しい suffix. Specifically evokes the image of someone doing everything within their power for another with sincere dedication, commonly in the context of caregiving, service, or loyal support. Has a slightly old-fashioned, literary warmth.

例文

1. 母は病気の父を甲斐甲斐しく世話し続けた。
2. 新入社員が甲斐甲斐しく上司の荷物を運んでいる姿が印象的だった。
3. 彼女は甲斐甲斐しい性格で、困っている人を放っておけない。

使い方ガイド

場面: caregiving, dedication, character

トーン: warm

起源と歴史

Reduplicated from 甲斐 (worth, effect) with しい creating an adjective meaning 'full of earnest effort for another.' The reduplication intensifies the sense of devoted industry, a formation pattern common in classical Japanese descriptors.

文化的背景

時代: Traditional

世代: Adults

社会的背景: Universal