The adjective glabrous sounds like what it means: “smooth”, “bald”, or more specifically, “having a surface without hairs or projections”.
This word is usually used to describe plants, but I think it’s a shame that it rarely shows up in any other context. There are plenty of glabrous globs of goop that need to be described as such!
At least I found one example sentence that uses glabrous creatively: “Colleen had her favorite hat on, and I decided to drive glabrous and unadorned; the sun felt wonderful and there would be plenty of time for hats later on” (Bob Ecker). I thought that was a humorous way to describe a bald guy driving a convertible.