Sleek
/sliːk/
noun
That which makes smooth; varnish.
verb
To make smooth or glossy; to polish or cause to be attractive.
adjective
Having an even, smooth surface; smooth
“sleek hair”
Glossy
Not rough or harsh.
Synonyms: civilized, classy, elegant, graceful, refined, frictionless, silky, glacé
adverb
With ease and dexterity.