不可一世 (bù kě yī shì) | Meaning: (idiom) to consider oneself unexcelled in the world; to be insufferably arrogant | Chinese Idiom with Pinyin & Origin

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

to act as though there were nobody else present · unselfconscious · fig. without regard for others旁若无人páng ruò wú rén

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

high and mighty (idiom); arrogant趾高气扬zhǐ gāo qì yáng

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

(idiom) to consider oneself unexcelled in the world; to be insufferably arrogant