Word
unbiased
Phoneticsun·bi·ased, stress on the second syllable
US/ˌənˈbaɪəst/
UK/ʌnbˈaɪəst/
Definition
adj. fair and not influenced by personal feelings or opinions. You use this to describe someone who treats all sides of an argument equally.
adj. showing no prejudice for or against something; impartial. Often used to describe reporting, research, or judicial decisions.
Examples
“A judge must remain unbiased during a trial.”
“The committee hired an outside consultant to provide an unbiased assessment of the company's finances.”
“To ensure the integrity of the double-blind study, researchers remained unbiased by having no prior knowledge of which participants received the placebo and which received the active treatment.”
Examples
simple
“A judge must remain unbiased during a trial.”
contextual
“The committee hired an outside consultant to provide an unbiased assessment of the company's finances.”
complex
“To ensure the integrity of the double-blind study, researchers remained unbiased by having no prior knowledge of which participants received the placebo and which received the active treatment.”
Usage
Often follows a linking verb like 'remain', 'stay', or 'be'.
Pitfall
an unbias opinion
an unbiased opinion
Learners often use the noun 'bias' instead of the participial adjective 'unbiased' when describing a person or viewpoint.
Real-World Examples
“The thousands of exoplanets scientists have discovered so far are not an unbiased sample of all the planets in our galaxy.” “AI Ethics Lead These professionals ensure AI systems are fair and unbiased for everyone.” Etymology
From un- + biased.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
NOUN
ADJECTIVE
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
- Frequency
- Frequent
- Level
- B2 · Upper Intermediate
- Updated
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englishreference.com/q/unbiased