He had some trepidation about agreeing to their proposal.
<shaking with trepidation, I stepped into the old abandoned house>
In the first minutes, hours, or even days of fieldwork most researchers feel trepidation about being an outsider, a stranger on the scene … —Marie D. Price, Geographical Review, January-April 2001
This was an ambitious project, and a number of us felt some trepidation about the possible results. —Brian Phillips, New Republic, 13 Dec. 1999
I came aboard the 319 with trepidation, to join the lives of utter strangers, a man untried by the circumstances they had known. —Henry G. Bugbee, Jr., “Naval History,” in Authors at Sea, Robert Shenk, ed., 1997