不大

not very

not too

not often

不大[bùdà]

-（不经常）notoften;seldom;rarely;hardly;scarcely:
Heseldomgoestothecinema.他不大看电影。
Hehasn'tbeencomingaroundmuchrecently.他最近不大来。
-（程度不深）notvery;nottoo;notquite:

他们不大愿意帮忙。
They were very reluctant to help.

他病得非常厉害，不大可能恢复健康了。
He is very ill and unlikely to recover.

不怎么想去，我并不大喜欢看电影。
Not really. I am not very fond of the cinema.

他很努力，却不大聪明。
He's hard-working, but not very clever.

我这人不大上相。
I'm not very photogenic.