0 (especially of hair) in a way that is smooth, soft, and shiny:
The rooms are sleekly contemporary, with ultra-modern lighting.
The film feels sleekly new while actually containing little that you haven't seen before.
She was not suited for the sleekly elegant heroines of early sound.
Catfolk resemble a cross between a large predatory cat and a human, with a sleekly muscled humanoid body and the head and mane of a feline.