IPA: //ˈrɪzəblɪ//
KK: /ˈrɪzəblɪ/
In a way that causes laughter or amusement; something that is laughable or ridiculous.
The comedian told the story risibly, making everyone in the audience laugh.
Risibly → It is formed from "risus" (meaning laughter) and the suffix "-bly" (meaning in a manner). The word "risibly" means in a manner that causes laughter or is laughable.
Think of 'risus' which means laughter, and remember that 'risibly' describes something done in a way that makes you laugh.