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 of unbiased

• 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

An unbiased bioethical analysis does not pose the question of whether gender-affirming care for youth should exist, but to whom, when and how it should be provided — balancing benefits and burdens, recognizing variation in child development, minimizing the chance of providing unneeded treatment. —Amy Caruso Brown, STAT, 30 Jan. 2026

Recognizing concerns around equitable and unbiased outreach, Councilmember Sue Wilson also requested that whatever firm is selected returns to the council to detail their community engagement plan. —Sierra Lopez, Mercury News, 28 Jan. 2026

Any sincere, unbiased conversation about artificial intelligence has to begin by acknowledging how insurmountable the topic really is. —Christian Zilko, IndieWire, 27 Jan. 2026

This keeps occurring, and the person perceives the AI as unbiased and serving as a vital neutral judge about what the therapist is all about. —Lance Eliot, Forbes.com, 22 Jan. 2026

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