faint-hearted (also fainthearted)

• 1. 

  ADJ If you describe someone or their behaviour as faint-hearted, you mean that they are not very confident and do not take strong action because they are afraid of failing. 胆怯的; 懦弱的

  例：

  This is no time to be faint-hearted.

  现在不是胆怯的时候。

• 2. 

  PHRASE If you say that something is not for the faint-hearted, you mean that it is an extreme or very unusual example of its kind, and is not suitable for people who like only safe and familiar things. 胆小者(不适) [usu v-link PHR]

  例：

  It's a film about a serial killer and not for the faint-hearted.

  这是部关于连环杀手的电影，胆小者勿近。