Smooth

apacible

(placid, calm)

constante

(motion: unbroken)

glaxo

(lacking friction, not rough)

liso

(lacking friction, not rough)

liso

(edge: lacking projections or indentations; not serrated)

sofisticado

(suave; sophisticated)

suave

(lacking friction, not rough)

suave

(beverage: having a pleasantly rounded flavor; neither rough nor astringent)

suave

(mathematics, of a function: Having derivatives of all finite orders at all points within the function’s domain)

terso

(lacking friction, not rough)

tranquilo

(placid, calm)

alisar

(make smooth)