Adjective

(er)

Having an even, smooth surface; smooth; hence, glossy.

sleek hair

* Dryden

So sleek her skin, so faultless was her make.

Not rough or harsh.

* Milton

Those rugged names to our like mouths grow sleek .

Adjective

(er)

sleek, slick

*{{quote-book, year=1790, author=Joanna Baillie, title=Poems, &c. (1790), chapter=, edition= citation

, passage=When all is o'er, out to the door they run, With new comb'd sleeky hair, and glist'ning cheeks, Each with some little project in his head. }}

*{{quote-book, year=1841, author=Various, title=Punch, or the London Charivari, Vol. 1, September 5, 1841, chapter=, edition= citation

, passage=He thought that the moulting season was over, and that he was rejoicing in the fulness of a sleeky plumage, and by his side was a Java sparrowess, chirping and hopping about, rendering the cage as populous to him as though he were the tenant of a bird-fancier's shop. }}

*{{quote-book, year=1905, author=George Bernard Shaw, title=The Irrational Knot, chapter=, edition= citation

, passage=Why, I thought he was a straight-haired, sleeky , canting snake of a man. }}

*{{quote-book, year=1920, author=John Freeman, title=Poems New and Old, chapter=, edition= citation

, passage=Even when with heavy Plume and pall The sleeky coaches roll by, Coffin, flowers and all, He laughs, for he sees Crouched on the coffin a small Yellowy shape go by-- Death, uneasy and melancholy. }}