unsure

Unsure whether his assailants were following him, he turned around and fired back with his AK-47.

I had been unsure how I was going to react to his performance.

Want to start self-tracking but unsure where to store your data, or how to make it look good (and more importantly, make sense)?

Unsure of what to do, the operator asked a superior what the correct move would be.

I remember trying to cast him in a movie a year before Taken, and they were unsure about him.

She seemed unsure now, and his hands in the uncertainty of that moment were moist like melting ice.

The matter becomes especially difficult when we feel ourselves unsure, or when we have discovered or expect contradiction.

Tommy got up with the rest, still feeling sick and oddly unsure of himself.

Divine guidance, did not save them from puzzling perplexities and unsure decisions.

In his later days he grew more and more unsure of himself, as he felt compelled to work at his topmost speed.