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adjective
level, unwrinkled; flowing
Synonyms: bland, continuous, creamy, easy, effortless, equable, even, flat, fluent, fluid, flush, frictionless, gentle, glassy, glossy, hairless, horizontal, invariable, lustrous, mild, mirrorlike, monotonous, peaceful, plain, planate, plane, polished, quiet, regular, rhythmic, rippleless, serene, shaven, shiny, silky, sleek, soft, soothing, stable, steady, still, tranquil, unbroken, undeviating, undisturbed, uneventful, uniform, uninterrupted, unruffled, untroubled, unvarying, velvety
Antonyms: broken, coarse, intermittent, irregular, rough, uneven, wrinkled
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adjective
suave in behavior
Synonyms: agreeable, bland, civilized, courteous, courtly, facile, genial, glib, ingratiating, mellow, mild, persuasive, pleasant, polite, slick, smarmy, unctuous, urbane
Antonyms: coarse, rough, uncool
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verb
make level
Synonyms: burnish, clear, even, flatten, flush, glaze, gloss, grade, iron, lay, level, make uniform, perfect, plane, polish, press, refine, round, sand, sleek, slick, varnish
Antonyms: coarsen, roughen, wrinkle
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verb
make peace
Synonyms: allay, alleviate, appease, assuage, calm, comfort, cool, ease, extenuate, facilitate, iron out, mellow, mitigate, mollify, palliate, pat, pave the way, soften, stroke, take the edge off, take the sting out
Antonyms: aggravate, agitate, incite, irritate, upset