hesitation/ hεzɪ'teɪʃən /

1.noun [c/u] 
(delay) 犹豫

2.noun
(in speech) 迟疑

3.noun
(unwillingness) 不愿意

I have no hesitation in agreeing with him
我毫不犹豫地同意了他的意见
he accepted without hesitation
他毫不犹豫地接受了