Synonyms of smoothing

1 Syllable
fluid, soft, mild, plain, still, quiet, flush, flat, rub, bland, fluent, sleek
2 Syllables
even, creamy, tranquil, soothing, lustrous, glossy, rhythmic, hairless, plane, stable, shiny, glassy, gentle, easy, steady, shaven, silky
3 Syllables
polished, regular, serene, peaceful, velvety, unruffled, uniform, untroubled, effortless, unbroken, equable, unvarying, frictionless, planate, continuous, rippleless
4 Syllables
undisturbed, invariable, monotonous, horizontal, mirrorlike, undeviating, uneventful
5 Syllables
uninterrupted