sleekness 光滑
sleekness[ noun ]- the quality of being well-groomed and neatly tailored
<noun.attribute>
the sleekness of his appearance reminded me of his financial successes
- the smooth feel of silk fabric
<noun.attribute>
Sleekness \Sleek"ness\, n.
The quality or state of being sleek; smoothness and
glossiness of surface.