lowlife
noun informal disapproving uk/ˈləʊ.laɪf/ us/ˈloʊ.laɪf/
[ C ] plural lowlifes（一个）卑劣的人；（一个）恶棍，罪犯
a person who exists by criminal activities or has a way of life that most people disapprove of
There are plenty of lowlifes out there, ready to take advantage of unsuspecting senior citizens. 到处都有许多卑劣的人，随时打算占没防备的老人的便宜。
[ U ] (UK also low life)（一群）卑劣的人；（一群）恶棍，罪犯
the group of people who exist by criminal activities or have a way of life that most people disapprove of
He started mixing with drug dealers, pimps, and other lowlife. 他开始与毒贩、皮条客等不法之徒混在一起。