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[uhn-bahy-uh st] /ʌnˈbaɪ əst/
not biased or prejudiced; fair; impartial.
Also, especially British, unbiassed.
Origin of unbiased
First recorded in 1600-10; un-1 + biased
Related forms
unbiasedly, adverb
fair, equitable, tolerant, neutral. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for unbiasedly
Historical Examples
  • 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 unbiasedly


having no bias or prejudice; fair or impartial
  1. (of a sample) not affected by any extraneous factors, conflated variables, or selectivity which influence its distribution; random
  2. (of an estimator) having an expected value equal to the parameter being estimated; having zero bias
  3. Also called discriminatory. (of a significance test). Having a power greater than the predetermined significance level
Derived Forms
unbiasedly, unbiassedly, adverb
unbiasedness, 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
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Word Origin and History for unbiasedly



c.1600, literal, in reference to throws at bowls, from un- (1) "not" + biased. Figurative sense of "impartial, unprejudiced" is recorded from 1640s.

Online Etymology Dictionary, © 2010 Douglas Harper
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