one who does things only for his own benefit and with little regard for right and wrongthat bottom-feeder would run over his own mother if it would help him get ahead in his career
that bottom-feeder would run over his own mother if it would help him get ahead in his career
chancer(British), opportunist, self-seeker, temporizer
egocentric, egoist, egotistconniver, machinator, plotter, schemerbarracuda, sharkhanger-on, leech
altruist
in 1851
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。