If you are hesitant about doing something, you do not do it quickly or immediately, usually because you are uncertain, embarrassed, or worried.
例句
She was hesitant about coming forward with her story...她不大愿意站出來講述自己的經歷。His advisers are rightfully hesitant to let the United States be sucked into the conflict.他的顧問們都理所當然地有所猶豫，不愿讓美國卷入沖突之中。
英英詞典釋義
Noun
1. a feeling of diffidence about doing something
2. a certain degree of unwillingness;
"a reluctance to commit himself""after some hesitation he agreed"