rotund

Rotund describes anything that's plump or round, like a teapot or your chubby Aunt Agnes.

Rotund describes someone who is round in shape, or obese. It's not a compliment. That's why it's probably okay to call Santa Claus rotund, but not your neighbor — at least not to his face! It's fine to call round things rotund, however, like a rotund vase full of flowers, which particularly makes sense when you know that the root of rotund is the Latin word rotundus, meaning round, circular, like a wheel.

Primary Meanings of rotund

1.
adj
spherical in shape
2.
adj
(of sounds) full and rich
Full Definitions of rotund
1

adj spherical in shape

Synonyms:
rounded
curving and somewhat round in shape rather than jagged

adj excessively fat

Synonyms:
corpulent, obese, weighty
fat
having an (over)abundance of flesh
2

adj (of sounds) full and rich

“the rotund and reverberating phrase”
Synonyms:
orotund, pear-shaped, round
full
(of sound) having marked deepness and body