Without bumps

flat, plane, even, flush, horizontal, unwrinkled, unvarying, level, monotonous, unrelieved, unruffled, mirrorlike, quiet, still, tranquil, sleek, glossy, glassy, lustrous, smooth as glass.

Antonyms rough*, steep*, broken. *

Without jerks

uniform, regular, even, invariable, undeviating, steady, stable, fluid, flowing, rhythmic, constant, equable, singsong, continuous.

Antonyms changeable*, spasmodic*, erratic. *

Without hair

shaven, beardless, whiskerless, clean-shaven, smooth-faced, smooth-chinned, glabrescent, glabrous; see also bald.

Antonyms hairy*, bearded*, unshaven.

Without qualities that are socially disturbing

suave, mild, genial; see polite 1.

Without irritants to the taste

bland, soft, creamlike; see creamy, delicious 1. See syn. study at easy, level.

To remove unevenness

even, level, flatten, grade, pave, macadamize, iron, burnish, polish, glaze, varnish, gloss, remove obstruction, remove roughness, sand, clear the way, smooth the path.

Antonyms wrinkle*, roughen*, corrugate. *

To mollify

palliate, mellow, mitigate; see decrease 2, ease 2, soften 2.