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Definition of unbiased

unbiased

/ʌnˈbaɪ.əst/
un · bi · ased
Adverb:unbiasedly
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unbiased Lexical Profile

unbiased Game Scores & Validity

• adjective

1

Showing no prejudice for or against something; impartial and fair.

Example

"The committee sought an unbiased opinion from an independent auditor before making a final decision."

2

(In statistics) having an expected value equal to the true value of the population parameter being estimated; free from systematic error.

Example

"The researchers used random sampling to ensure that the sample mean remained an unbiased estimator of the population average."

Synonyms
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Antonyms
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• Rhymes for unbiased

• Nearby Words

unbending
unbendingly
unbent
unbiased
unbiasedly
unbiblical
unbidden

Word Origin & Etymology

First recorded in the early 17th century, formed from the prefix 'un-' ('not') and 'biased', the past participle of 'bias', which derives from French 'biais' ('slant' or 'oblique'), a term originally used in the game of lawn bowls for a ball weighted to curve to one side.

Cite this Entry

Wordmom. (2026). Definition of Unbiased. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/unbiased
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