[ uhn-bahy-uhst ]
See synonyms for unbiased on Thesaurus.com
  1. not biased or prejudiced; fair; impartial.

Origin of unbiased

First recorded in 1600–10; un-1 + biased
  • Also especially British, un·bi·assed .

Other words for unbiased

Other words from unbiased

  • un·bi·ased·ly, adverb

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use unbiased in a sentence

  • As if the child did not look at the Bible "rightly and unbiasedly" when it makes it a plaything.

    The Ego and His Own | Max Stirner
  • Then the wise advice makes itself heard again at once, You must only look at it "rightly, unbiasedly," etc.

    The Ego and His Own | Max Stirner

British Dictionary definitions for unbiased



/ (ʌnˈbaɪəst) /

  1. having no bias or prejudice; fair or impartial

  2. statistics

    • (of a sample) not affected by any extraneous factors, conflated variables, or selectivity which influence its distribution; random

    • (of an estimator) having an expected value equal to the parameter being estimated; having zero bias

    • Also called: discriminatory (of a significance test). Having a power greater than the predetermined significance level

Derived forms of unbiased

  • unbiasedly or unbiassedly, adverb
  • unbiasedness or unbiassedness, 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