hes ‧ i ‧ tant /ˈhezətənt, ˈhezɪtənt/ BrE AmE adjective
uncertain about what to do or say because you are nervous or unwilling:
Gail gave me a hesitant little smile.
hesitant about (doing) something
They seemed hesitant about coming in.
hesitant to do something
She is hesitant to draw conclusions until the study is over.
—hesitantly adverb