adjective un·bi·ased \ ˌən-ˈbī-əst \
|Updated on: 1 Jul 2018

Definition of unbiased

1 : free from bias; especially : free from all prejudice and favoritism : eminently fair
  • an unbiased opinion
2 : having an expected value equal to a population parameter being estimated
  • an unbiased estimate of the population mean


play \ˌən-ˈbī-əs(t)-nəs\ noun

Examples of unbiased in a Sentence

  1. Let me offer an unbiased opinion.

  2. offered an unbiased judgment of the dancer's performance

Recent Examples of unbiased from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unbiased.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of unbiased


in the meaning defined at sense 1

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Synonym Discussion of unbiased

fair, just, equitable, impartial, unbiased, dispassionate, objective mean free from favor toward either or any side. fair implies a proper balance of conflicting interests.
    • a fair decision
just implies an exact following of a standard of what is right and proper.
    • a just settlement of territorial claims
equitable implies a less rigorous standard than just and usually suggests equal treatment of all concerned.
    • the equitable distribution of the property
impartial stresses an absence of favor or prejudice.
    • an impartial third party
unbiased implies even more strongly an absence of all prejudice.
    • your unbiased opinion
dispassionate suggests freedom from the influence of strong feeling and often implies cool or even cold judgment.
    • a dispassionate summation of the facts
objective stresses a tendency to view events or persons as apart from oneself and one's own interest or feelings.
    • I can't be objective about my own child

UNBIASED Defined for English Language Learners


Definition of unbiased for English Language Learners

  • : not having or showing an unfair tendency to believe that some people, ideas, etc., are better than others : not biased

UNBIASED Defined for Kids


adjective un·bi·ased \ ˌən-ˈbī-əst \

Definition of unbiased for Students

: free from bias an unbiased opinion

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to grant as a privilege or special favor

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