also fainthearted
1.
If you describe someone or their behaviour as ~, you mean that they are not very confident and do not take strong action because they are afraid of failing.
This is no time to be ~...
ADJ
2.
If you say that something is not for the ~, 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.
It’s a film about a serial killer and not for the ~.
PHRASE: usu v-link PHR