Synonymes smooth (anglais)

Verbe
- action : flatten, even, level, press, roll, iron, grade, plane
- activity : polish, refine, glaze, varnish, gloss
- activity : calm, soothe, tranquillise, tranquillize, assuage, mollify, better
- activity : palliate, ease, soften, decrease, mitigate, soothe, gloss over, mellow

Adjectif
- behaviour : polite, courteous, courtly, agreeable, pleasant, genial, suave, mild
- characterisitc : regular, unvarying, uniform, even, invariable, steady, stable, constant
- characterisitc : quiet, peaceful, still, calm, tranquil, peaceable, undisturbed, unruffled
- characterisitc : glib, suave, urbane, polished, unctuous, oily, voluble, flowing
- property : bald, glassy, glossy, lustrous, polished, sleek, hairless
- property : even, level, flat, horizontal, flush, plain, unrelieved, unruffled