Bias is a noun, meaning a particular tendency or inclination, esp. one that prevents unprejudiced consideration of a question; prejudice For example - that article shows the writer's bias. Biased means to cause partiality or favoritism; influence, esp. unfairly: a tearful plea designed to bias the jury. For example - that article is biased toward the writer's point of view. it's incorrect to say "that article is bias"