adj. sleek·er, sleek·est
a. Smooth and lustrous as if polished; glossy: long, sleek hair.
b. In good health and having smooth or glossy hair, fur, or skin: a sleek hound.
a. Able to or designed to move efficiently through air or water; streamlined: a sleek, luxurious sedan.
b. Thin and elegant in design: "A pair of sleek minarets anchored the skyline" (Terence Ward).
3. Polished or smooth in manner, especially in an unctuous way; slick: a sleek government official.
tr.v. sleeked, sleek·ing, sleeks
To make sleek; slick: sleeked his hair with pomade.
[Variant of SLICK.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.