快
快
“speedy”
Radical: 忄
Strokes: 7
Level: HSK 2
How 快 is built — side by side
The story behind 快
Heart (忄) + 夬 (guài, sound) = fast, quick (快). Also "happy" in 快乐.
💡 快乐 (kuàilè) = happy. 很快 (hěn kuài) = very fast.
Words with 快
快乐 kuàilè — happy
凉快 liáng kuai — nice and cold
愉快 yú kuài — cheerful
赶快 gǎn kuài — at once
痛快 tòng kuài — overjoyed
尽快 jǐn kuài — as quickly as possible
快活 kuài huo — happy
爽快 shuǎng kuài — refreshed
Related characters
Practice 快 in the free app — animated stroke order, tone training with your microphone, and spaced-repetition flashcards.
Open Hanzi Academy — free → ← Browse all 839 characters