adjective · physically filthy, unclean, or sordid

这间屋子龌龊不堪，很久没有人打扫了。

adjective · literary description of a person who is petty or limited in outlook

其人气量龌龊，不足与谋。

adjective · morally despicable, base, or contemptible

他那龌龊的勾当终于被揭穿了。