自以为是 zì yǐ wéi shì

DEFINITIONS

  1. to believe oneself infallible (idiom)
  2. to be opinionated

CHARACTERS

自 zì
HSK 3
self, private, personal; from
以 yǐ
HSK 2
by means of; thereby, therefore; consider as; in order to
为 wéi
HSK 2
do, handle, govern, act; be
是 shì
HSK 1
indeed, yes, right; to be; demonstrative pronoun, this, that