自以为是
zì yǐ wéi shì
In real, traceable use. Part of the curated seed collection; community review is coming.
Traditional: 自以為是
Convinced that you are always right and unwilling to listen to anyone else; smug and stubborn in your opinions. A very common criticism in everyday speech.
Luôn cho mình là đúng, không chịu nghe ý kiến của người khác; chủ quan, tự phụ. Là lời chê rất thường gặp trong lời nói hằng ngày.
Register: neutral
Examples
Editorial example (illustrative, not a corpus attestation) — awaiting a native-speaker check
Sources & notes
Hán-Việt bridge batch 062 (2026-11-13). Headword, Traditional form and pinyin checked against CC-CEDICT (CC BY-SA 4.0) source ↗ · Hán-Việt reading: Unihan kVietnamese source ↗ ; en.wiktionary Vietnamese entries via kaikki.org extract, snapshot 2026-07-31 (CC BY-SA 4.0): Hán-Việt reading 以 = dĩ, 为/為 = vi · Vietnamese cognate: Idiomer entry “tự dĩ vi thị” (tu-di-vi-thi). Definition, literal gloss and example sentence are original; the example has not had a native-speaker check yet.
Equivalents & related
Common questions
What does “自以为是” mean?
Convinced that you are always right and unwilling to listen to anyone else; smug and stubborn in your opinions. A very common criticism in everyday speech. Literally: take oneself to be right
Is “自以为是” formal or informal?
自以为是 is generally neutral.