[ uhn-ee-vuhn ]
/ ʌnˈi vən /


not level or flat; rough; rugged: The wheels bumped and jolted over the uneven surface.
irregular; varying; not uniform: The book is uneven in quality.
not equitable or fair; one-sided: an uneven contest.
not equally balanced; not symmetrical or parallel.
(of a number) odd; not divisible into two equal integers: The numerals 3, 5, and 7 are uneven.

Origin of uneven

before 900; Middle English; Old English unefen; cognate with German uneben. See un-1, even1
Related formsun·e·ven·ly, adverbun·e·ven·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unevenness

British Dictionary definitions for unevenness


/ (ʌnˈiːvən) /


(of a surface, etc) not level or flat
spasmodic or variable
not parallel, straight, or horizontal
not fairly matchedan uneven race
archaic not equal
obsolete unjust
Derived Formsunevenly, adverbunevenness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for unevenness



Old English unefen "unequal," from un- (1) "not" + even (adj.). Cf. Old Frisian oniovn, Middle Dutch oneven, Old High German uneban, German uneben, Old Norse ujafn. Meaning "irregular, broken, rugged" (in reference to terrain, etc.) is recorded from late 13c.

Online Etymology Dictionary, © 2010 Douglas Harper