a person who likes to show off in a clever but annoying waya loudmouthed wiseacre who thinks he is more amusing than he really is
a loudmouthed wiseacre who thinks he is more amusing than he really is
smart aleck(also smart alec), smarty(or smartie), smarty-pants, wise guy, wiseass, wisenheimer(also weisenheimer)
know-all(chiefly British), know-it-allwisecrackerhotshot, show-off
in 1595
英语同义词词典收录了63618条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。