From Longman Dictionary of Contemporary Englishtrepidationtrep‧i‧da‧tion /ˌtrepəˈdeɪʃən/ noun [uncountable] FRIGHTENEDa feeling of anxiety or fear about something that is going to happen With some trepidation, I opened the door.
Examples from the Corpus
trepidation• Some of this apparent trepidation is due to overwhelming self criticism of the proposal.• I open my home with some trepidation and humility.• It was a day that should rightly be viewed with some trepidation, but not in the time of Amos.• It was with some trepidation that I slid a 5-pound chicken with peeled, quartered potatoes into the 500-degree oven.• I threw in my entire savings toward the down-payment and, with trepidation, agreed to manage the building.• When the world descended on Sydney last month it was with trepidation.Origin trepidation (1400-1500) Latin trepidatio, from trepidare “to shake” 