1. without bias

2. Impartial; unprejudiced.

3. Freed from prejudice or bias.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• unbiase,
• unphased,
• unleased,
• unbasied,
• unbased,
• unbaned,
• unbaised,
• unbias,
• uneased,
• unfased,
• unbiast,
• unbiasly,
• unbeated,
• ubiased,
• unbashed,
• unbiases,
• unibased,
• unabuased,
• unbiaased,
• unbised

• unobserved,
• unabashed,
• unfixed,
• unabused,
• unfasten,
• unobservant,
• unposed,
• unbigoted,
• unfocused,
• unabashedly,
• unfastened,
• unopposed,
• unfeasible,
• unfastening,
• unobvious,
• unbiassed,
• unpassable,
• unfastener.

The adjective form of the word "unbiased" is "unbiased".

The plural form of the word "unbiased" is "unbiaseds".

The singular form of the word "unbiased" is "unbiassed" However, both "unbiased" and "unbiassed" are accepted spellings in British English, while "unbiased" is more commonly used in American English.