rotundness (noun)

1. The rotundness of the creature lurking in the darkness made it even more terrifying.

2. Why did the round object go to the party? Because it wanted to show off its rotundness on the dance floor!

3. One of the oldest known artifacts displaying rotundness is the statuette of the Venus of Willendorf, dating back to around 28,000 BCE.

4. The exaggerated rotundness of the cartoon character adds to its comedic appeal.