protuberance
4 antonyms for protuberance — opposites grouped by meaning.
Noun — A part that sticks out from a surface, such as a bulge, lump or swelling.
Antonyms
Etymology
It comes from French protubérance, from Latin prōtubērantia ("bulge; protuberance"), formed from prō, tūber ("swelling; protuberance") and -antia ("-ance").
Full origin of protuberance →