Sleek (adjective) — أنيق وسلس ومصقول: Smooth, glossy and well-shaped. Below are 7 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
Elegant means tastefully refined, gracefully simple, and stylishly effective — pleasing in form while remaining clear and purposeful.
smoothglossystreamlinedpolishedshinyslick