他对服务员的态度很不礼貌，连句谢谢都没说。

He gave the waiter an ___ungracious look and didn't even say thank you.

她勉强地给了弟弟一块饼干，显得很不情愿。

She handed her brother a cookie with an ___ungracious look on her face.

她对服务员的无礼态度让整个晚餐气氛变得很糟糕。

Her ___ungracious attitude towards the waiter ruined the dinner atmosphere.