trepidation

US /ˌtrep.əˈdeɪ.ʃən/
UK /ˌtrep.əˈdeɪ.ʃən/
"trepidation" picture
1.

a feeling of fear or anxiety about something that may happen

:
He felt a sense of trepidation as he approached the stage.
There was some trepidation about the upcoming exams.