Pronunciation: (un-ē'vun),[key] —adj. 1. not level or flat; rough; rugged: The wheels bumped and jolted over the unevensurface. 2. irregular; varying; not uniform: The book is uneven in quality. 3. not equitable or fair; one-sided: an uneven contest. 4. not equally balanced; not symmetrical or parallel.
5. (of a number) odd; not divisible into two equal integers: The numerals 3, 5, and 7 are uneven.