hesitation
noun /ˌhezɪˈteɪʃn/
  /ˌhezɪˈteɪʃn/
- [uncountable, countable] the act of being slow to speak or act because you feel uncertain or nervous
- She agreed without the slightest hesitation.
 - He spoke fluently and without unnecessary hesitations.
 
 - [uncountable] the fact of being worried about doing something, especially because you are not sure that it is right or appropriate
- I have no hesitation in recommending her for the job.