apprehensive
ap•pre•hen•siveBrE /ˌæprɪˈhensɪv/
NAmE /ˌæprɪˈhensɪv/
adjective
word originworried or frightened that sth unpleasant may happen
example bank
an apprehensive face/glance/look~ about/of sth I was a little apprehensive about the effects of what I had said.You have no reason to be apprehensive of the future.~ that… She was deeply apprehensive that something might go wrong. 
ap•pre•hen•sive•ly /BrE ˌæprɪˈhensɪvli; NAmE ˌæprɪˈhensɪvli/ adverb
