uneven

UK: /ˌʌnˈiːv^ən/ US: /ʌnˈivən/ ,(un ē′vən)

WordReference Random House Learner's Dictionary of American English © 2025

un•e•ven /ʌnˈivən/   adj. 

1. not level or flat;
   rough:
   an uneven surface.
2. not uniform;
   varying;
   inconsistent:
   a novel of uneven quality.
3. not balanced:
   uneven treatment of candidates in the press.
4. not balanced;
   not symmetrical or parallel:
   an uneven hemline.
5. Mathematics (of a number) odd;
   not divisible into two equal integers:
   The numerals 3, 5, and 7 are uneven.

un•e•ven•ly, adv. 

WordReference Random House Unabridged Dictionary of American English © 2025

un•e•ven  (un ē′vən), adj. 

1. not level or flat;
   rough;
   rugged:
   The wheels bumped and jolted over the uneven
   surface.
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. Mathematics (of a number) odd;
   not divisible into two equal integers:
   The numerals 3, 5, and 7 are uneven.

• bef. 900; Middle English; Old English unefen; cognate with German uneben. See un-¹, even¹

un•e′ven•ly, adv. 
un•e′ven•ness, n. 
Synonyms

• 3. unfair, unequal, lopsided.

Collins Concise English Dictionary © HarperCollins Publishers::

uneven / ʌnˈiːvən/ adjective

1. (of a surface, etc) not level or flat
2. spasmodic or variable
3. not parallel, straight, or horizontal
4. not fairly matched: an uneven race
5. not equal

unˈevenly adverb

unˈevenness noun