Smooth

liso

(lacking friction, not rough)

liso

(edge: lacking projections or indentations; not serrated)

suave

(without difficulty)

suave

(bland; glib)

suave

(action: natural; unconstrained)

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)

alisar

(make smooth)