自以為是 Save Sign in to save words Simplified: 自以为是 On the HSK 7-9 vocabulary list, at CEFR level C2. zìyǐwéishì ㄗˋ ㄧˇ ㄨㄟˊ ㄕˋ to believe oneself infallible (idiom) to be opinionated Character by character 自(zì)self 以(yǐ)use 為(wéi)as (in the capacity of) 是(shì)be A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0 国际中文教育中文水平等级标准, 中华人民共和国教育部, MIT