If you describe someone as cowardly, you disapprove of them because they are easily frightened and avoid doing dangerous and difficult things. 胆小的; 怯懦的
adjective [原级] 怯懦的,胆小的;恃强凌弱的
He was weak, cowardly and treacherous. 他软弱、胆怯、奸诈。
adverb [方式副词] <古>胆怯地,怯懦地
This was a cowardly thing to do. 做这种事是懦弱的行为。