- (nonstandard) The comparative form of curious; more curious.
- This is getting curiouser and curiouser. I wonder what it means.
The standard comparative is more curious. In the famous story, Alice in Wonderland, Alice says "curiouser and curiouser." She means that the land seems stranger every time she finds out something new. When people use curiouser, it is almost always in the phrase get(ting) curiouser and curiouser.