hesitation
/ˌhezɪˈteɪʃən/noun
mass noun
1- the action of pausing or hesitating before saying or doing something（说话或做事前）犹豫, 迟疑：
she answered without hesitation.
她毫不犹豫地回答。
1.1
- usu. with negative doubt or reluctance疑惑, 怀疑; 勉强, 不情愿：
I have no hesitation in recommending him.
我很乐意推荐他。
词源
early 17th cent.: from Latin haesitatio(n)-, from haesitare （see HESITATE）.