giggliest
/ˈɡɪɡliɪst/
adjective
- Most inclined to giggle; the most prone to laughing in a silly or nervous way.
- He was the giggliest when he was tired, finding everything hilarious.
- The giggliest person in the room couldn't stop laughing at the puns.
- Out of all the kids, she was the giggliest during the puppet show.