貞 — “Upright / Chastity / Constancy / Righteousness” in Japanese

Master (高手)てい, さだ

Radical ⾙ · radical 154 The building block this kanji is filed under

“Upright / Chastity / Constancy / Righteousness” in Japanese is 貞, read tei, sada (てい, さだ). 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 貞操 (chastity).

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What does 貞 mean?

Full details, readings & example

Kanji	貞
Meaning	Upright / Chastity / Constancy / Righteousness
Readings	てい, さだ
Grade	Master (高手 · secondary school)
Curriculum	Jōyō kanji · Japanese secondary school (JLPT N1–N2)
Example	貞操 (chastity)

How to read 貞

貞 is read tei (てい) or sada (さだ) depending on the word.

Words with 貞

貞操

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Kanji read the same way as 貞

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

Updated: 2026-08-28