快 — pleasant / cheerful

Grade 5かい, こころよ

Radical ⼼ · radical 61 The building block this kanji is filed under

快 (readings: かい, こころよ; Japanese kanji) means “pleasant / cheerful”. It is a Grade 5 Kyōiku kanji, taught in year 5 of Japanese elementary school, and appears in words such as 快適 (comfortable).

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What does 快 mean?

Full details, readings & example

Kanji	快
Meaning	pleasant / cheerful
Readings	かい, こころよ
Grade	Grade 5 (Hard)
Curriculum	Kyōiku kanji · Japanese elementary school
Example	快適 (comfortable)

How to read 快

快 is read かい or こころよ depending on the word.

Words with 快

快勝かいしょうthắng đẹp
快適thoải mái
愉快vui vẻ
爽快sảng khoái

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Updated: 2026-08-09