IPA: //ʌnˈbaɪəst//
KK: /ʌnˈbaɪəst/
Not showing any favoritism or prejudice; treating all sides equally and fairly.
The judge made an unbiased decision based on the evidence presented.
Unbiased → It is formed from "un-" (meaning not) and "biased" (from Old French *bias*, meaning slant or inclination). The word "unbiased" means not having a slant or inclination, indicating impartiality.
Think of 'not' ('un-') having a 'slant' or 'inclination' ('biased') — that's why unbias means to be impartial.