疾 — “Rapidly” in Japanese

Master (高手)しつ, はや

Radical ⽧ · radical 104 The building block this kanji is filed under

“Rapidly” in Japanese is 疾, read shitsu, haya (しつ, はや). It is a Jōyō kanji taught in Japanese secondary school (junior & senior high) — the 高手 · Master tier beyond the grade 1–6 Kyōiku set, and appears in words such as 疾走 (dash).

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What does 疾 mean?

Full details, readings & example

Kanji	疾
Meaning	Rapidly
Readings	しつ, はや
Grade	Master (高手 · secondary school)
Curriculum	Jōyō kanji · Japanese secondary school (JLPT N1–N2)
Example	疾走 (dash)

How to read 疾

疾 is read shitsu (しつ) or haya (はや) depending on the word.

Words with 疾

疾走

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Kanji read the same way as 疾

Same sound, different character — the classic trap. Compare them side by side:

Updated: 2026-08-28