自 以 为 是

zì yǐ wéi shìdictionary entry

to believe oneself infallible (idiom) / to be opinionated

Sources & editorial notes

Reference definitions: CC-CEDICT contributors and MDBG, CC BY-SA 4.0. Source release 2026-10-27T01:55:52Z. Imported 2026-10-27. Definition wording and meaning order are retained. Recognized pronunciation references are displayed with tone marks; the original source record is available below.

Source record: cd-fb66637877ce2630. Source SHA-256: bbc4b27f26bee1a262f4d7939667a040c7857c7fc0200a2fa7a86d3352a09eae.

Original source entry:

自以為是自以为是 [zi4 yi3 wei2 shi4] /to believe oneself infallible (idiom)/to be opinionated/

Reference definitions and teaching material have separate provenance.

Reference information

The definitions above are from CC-CEDICT. Examples and usage notes are available on selected entries.

Character information

View the individual characters. Their meanings do not necessarily explain the meaning of the whole word.

Other forms in these source records: 自以為是

自
zì
(bound form) self / oneself / from / since / naturally / as a matter of course
以
yǐ
to use / by means of / according to / in order to / because of / at (a certain date or place)
Yǐ
abbr. for Israel 以色列[Yǐ sè liè]
为
wéi
as (in the capacity of) / to take sth as / to act as / to serve as / to behave as / to become / to be / to do / by (in the passive voice)
wèi
because of / for / to
是
shì
to be (followed by substantives only) / correct / right / true / (respectful acknowledgement of a command) very well / (adverb for emphatic assertion)

Reference definitions from CC-CEDICT.