uneven

American Heritage® Dictionary of the English Language, Fourth Edition

1. adj. Not equal, as in size, length, or quality.
2. adj. Having ill-matched opponents: an uneven contest.
3. adj. Not consistent or uniform: an uneven color.
4. adj. Not smooth or level: the uneven surface of a cobblestone road. See Synonyms at rough.
5. adj. Not straight or parallel: uneven margins.
6. adj. Of, relating to, or being an odd number.
7. adj. Obsolete Not fair or equitable.

Century Dictionary and Cyclopedia

1. Not even. Not level, smooth, or plain; rough; rugged. Shak., M. N. D., iii. 2, 417. Not straight or direct; crooked. Shak., R. and J., iv. l. 5. Not uniform, equable, regular, or continuous; changeable; jerky.
2. Not perfectly horizontal or level, as the beam of a scale; not at the same height or on the same plane; hence, not fair, just, or true.
3. In arithmetic, odd; not divisible by 2 without a remainder: as, 3, 5, 7, etc., are uneven numbers.
4. Ill-matched; unsuitable; ill-assorted.

Wiktionary

1. adj. Not even
2. adj. Not level or smooth
3. adj. Not uniform
4. adj. Varying in quality

GNU Webster's 1913

1. adj. Not even; not level; not uniform; rough.
2. adj. Not equal; not of equal length.
3. adj. Not divisible by two without a remainder; odd; -- said of numbers.

WordNet 3.0

1. adj. variable and recurring at irregular intervals
2. adj. lacking consistency
3. adj. (of a contest or contestants) not fairly matched as opponents
4. adj. not divisible by two
5. adj. not even or uniform as e.g. in shape or texture