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See more synonyms for one-sided on Thesaurus.com
  1. considering but one side of a matter or question; partial or unfair: a one-sided judgment.
  2. with one party, contestant, side, etc., vastly superior; unbalanced; unequal: a one-sided fight.
  3. existing or occurring on one side only.
  4. having but one side, or but one developed or finished side.
  5. having one side larger or more developed than the other.
  6. Law. involving the action of one person only.
  7. having the parts all on one side, as an inflorescence.
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Origin of one-sided

First recorded in 1805–15
Related formsone-sid·ed·ly, adverbone-sid·ed·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for one-sided

Contemporary Examples

Historical Examples

  • But it was a one-sided struggle and lasted only for a second or two.

  • Yet the one-sided silence lived, with the terrible tenacity of evil.

    Meadow Grass

    Alice Brown

  • And don't be one-sided, my dear madam; it's not considerate, it's not kind.

    Little Dorrit

    Charles Dickens

  • I shall try to avoid falling into the error of a one-sided view.

    The Truth About Woman

    C. Gasquoine Hartley

  • But the characters of men are one-sided and accept this or that aspect of the truth.



British Dictionary definitions for one-sided


  1. considering or favouring only one side of a matter, problem, etc
  2. having all the advantage on one side
  3. larger or more developed on one side
  4. having, existing on, or occurring on one side only
  5. another term for unilateral
  6. denoting a surface on which any two points can be joined without crossing an edgeSee Möbius strip
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Derived Formsone-sidedly, adverbone-sidedness, 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 one-sided


1833, "dealing with one side of a question or dispute," from one + side (n.). Related: One-sidedly; one-sidedness.

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Online Etymology Dictionary, © 2010 Douglas Harper