unsure · adjective /ʌnˈʃɔːr/Full view
unsure
B2 not certain or having doubts
Dictionary examples:

I'm a bit unsure about what to do.

I was unsure of the directions.

I was unsure what/how to tell them.

Learner example:

As I have not been there before, I am rather unsure of what to wear. (First Certificate in English; B2; Chinese)

unsure of yourself
C2 without confidence
Dictionary example:

She had only been in the job for a week and was still a bit unsure of herself.

Learner example:

On the other hand, Kingshaw, normally weaker than Cooper, very sensitive, unsure of himself, has his ups, too, and comes, though very seldom, to feel determined and superior; when he climbs the rocks he is definitely head and shoulders above Cooper who hasn't a head for heights. (Certificate of Proficiency in English; C2; Russian)

Cambridge logo