unbiased

adjective

un·​bi·​ased ˌən-ˈbī-əst 

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

unbiasedness

ˌən-ˈbī-əs(t)-nəs 

noun

Synonyms

• impartial
• equitable
• equal

Choose the Right Synonym for 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

Examples of unbiased in a Sentence

Let me offer an unbiased opinion.

offered an unbiased judgment of the dancer's performance

Recent Examples on the Web

The influential program seeks to connect executives from across Nashville with a series of classes that present an unbiased view of the city while deepening relationships among organizations. —Alessia Sandala, The Tennessean, 2 July 2025

All samples were randomized, anonymized and processed independently to ensure clean, unbiased results. —Sindhya Valloppillil, Forbes.com, 1 July 2025

No unbiased research to date has identified toxicity caused by ethylmercury in vaccines or a link between the substance and autism or other developmental concerns – and not from lack of looking. —Terri Levien, The Conversation, 25 June 2025

In the wake of Health Secretary Robert F. Kennedy Jr.’s move to shake up a key federal vaccine advisory committee, outside medical organizations and independent experts are considering forming their own unbiased group. —Nick Duffy, NBC news, 23 June 2025

Word History

First Known Use

1607, in the meaning defined at sense 1

Rhymes for unbiased

• biased
• driest
• highest

Kids Definition

unbiased

adjective

un·​bi·​ased ˌən-ˈbī-əst 

ˈən-

: free from bias

especially : impartial, unprejudiced

an unbiased opinion