妄自尊大 (wàng zì zūn dà) | Meaning: ridiculous self-importance (idiom); arrogance | Chinese Idiom with Pinyin & Origin

lit. Yelang thinks highly of itself (idiom) · fig. foolish conceit夜郎自大Yè láng zì dà

the eye can see nothing worthwhile all around (idiom); arrogant · condescending · supercilious目空一切mù kōng yī qiè

pride · arrogance · conceited · proud of sth骄傲jiāo ào

to think of oneself as terrific (idiom); arrogant自高自大zì gāo zì dà

extremely conceited · supremacy over all · terribly self-conceited · assume an air of self-importance · overlordship · overweening唯我独尊wéi wǒ dú zūn

self-opinionated师心自用shī xīn zì yòng

ridiculous self-importance (idiom); arrogance