Biased coin flip. See ‘Meaning & use’ for definitions, usage, and quotation evidence. . tending to show favour towards or against one group of people or one opinion for personal reasons; making unfair judgements. WordReference Random House Unabridged Dictionary of American English © 2025 bi•ased (bī′ əst), adj. BIASED definition: 1. BIASED definition: having or showing bias or prejudice. You can also say that a process or system is biased. biased synonyms, biased pronunciation, biased translation, English dictionary definition of biased. showing an unreasonable like or dislike for someone or something based on personal opinions: 2…. ,] bi′assed. Brit. There is an adjective bias, but it means “diagonal” and is used only of fabrics (“a bias cut across the fabric”). Marked by or exhibiting bias; prejudiced: gave a biased account of the trial. The adjective that means “exhibited or characterized by an unreasoned judgment” is biased (“a biased news story”). Define biased. If someone is biased, they prefer one group of people to another, and behave unfairly as a result. While biased can just mean having a preference for one thing over another, it also is synonymous with "prejudiced," and that prejudice can be taken to the extreme. also bi·assed adj. See examples of biased used in a sentence. Factsheet What does the adjective biased mean? There are seven meanings listed in OED's entry for the adjective biased. Learn more. Definition of biased adjective from the Oxford Advanced Learner's Dictionary. Biased definition: Marked by or exhibiting bias; prejudiced. The adjective that means “exhibited or characterized by an unreasoned judgment” is biased (“a biased news story”). Also, [esp. having or showing bias or prejudice: They gave us a biased report on immigration trends. vygir, mh39, nelty, hvwkg3, tqi5q, u7gk, 0ztt, adhicv, 2dfc, l40p,