IPA: //roʊˈtʌndnəs//
KK: /roʊˈtʌndnəs/
The quality of being round or plump in shape; often used to describe a full or fat appearance.
The rotundness of the pumpkin made it perfect for carving into a jack-o'-lantern.
Rotundness → It is formed from "rotundus" (Latin, meaning round) and the suffix "-ness" (meaning the state or quality of). The word "rotundness" refers to the quality or state of being round.
Think of the Latin word for round, 'rotundus', to remember that 'rotundness' describes the quality of being round.