sleeky /ˈsliːki/ adjective2 •sleek; slickWhen 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. — 1790 •slick; sly; untrustworthyWhy, I thought he was a straight-haired, sleeky, canting snake of a man. — 1905 formssleekier · sleekiest