hesitation
US /ˌhez.əˈteɪ.ʃən/
UK /ˌhez.əˈteɪ.ʃən/

1.
the action of pausing or hesitating before saying or doing something
:
•
After a slight hesitation, she agreed to the proposal.
•
He spoke without any hesitation.
the action of pausing or hesitating before saying or doing something