1. 机敏的回答
A riposte is a quick, clever reply to something that someone has said.

2. 机敏地回答
If you riposte, you make a quick, clever response to something someone has said.

3. 回应;还击
You can refer to an action as a riposte to something when it is a response to that thing.

1. (fencing) a counterattack made immediately after successfully parrying the opponents lunge

2. a quick reply to a question or remark (especially a witty or critical one)

e.g. it brought a sharp rejoinder from the teacher

Synonym: rejoinderretortreturnreplicationcomebackcounter