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 alecks(also smart alecs), smarties, smarty-pants, wiseasses, wise guys, wisenheimers(also weisenheimers)
know-alls(chiefly British), know-it-allswisecrackershotshots, show-offs
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。