形容词 (adj.): 懦弱的,胆小的,怯懦的。
常用于描述缺乏勇气或在困难面前退缩的人或行为。
It was a cowardly act to run away without helping.
不施以援手就逃跑是一种懦弱的行为。
He gave a cowardly excuse for not attending the meeting.
他找了个怯懦的借口不去参加会议。