unbiased

Từ điển American Heritage Dictionary 4th

un·bi·ased also un·bi·assed (ŭn-bīʹəst)adj.
Without bias or prejudice; impartial. See Synonyms at fair¹. un·biʹased·ly adv.un·biʹased·ness n.

• Từ đồng nghĩa / Synonyms:
  unbiassed, indifferent