unwillingly 

英汉解释

adv. 不情愿地；勉强地

反义词

r.   volitionally，willingly

参考例句

1. Even when I call, he receives unwillingly.
他也是很不情愿地接待我。
2. Unwillingly She opened up her umbrella and walked with me to the car.
很不情愿地，她打开自己的伞，跟我一起走向汽车。
3. She knew now why she had sometimes, so dimly and so unwillingly , felt that her father had betrayed her.
她现在才知道为什么自己有时会如此朦胧而又如此不情愿地感到父亲背叛了她。

英英解释

adv.
  1. in an unwilling manner

网络释义

unwillingly
不愿意地; 不情愿地，勉强地; 不愿意; 不情愿地;
unwillingly be to grayness
慢慢的变成灰色;