biased — If someone is biased, they prefer one group of people to another, and behave unfairly as a result. You can also say that a process or system is biased.
biassed — a particular tendency, trend, inclination, feeling, or opinion, especially one that is preconceived or unreasoned: illegal bias against older job applicants; the magazine’s bias toward art rather than photography; our strong bias in favor of the idea.
partial — being such in part only; not total or general; incomplete: partial blindness; a partial payment of a debt.
prejudiced — an unfavorable opinion or feeling formed beforehand or without knowledge, thought, or reason.
unfair — not fair; not conforming to approved standards, as of justice, honesty, or ethics: an unfair law; an unfair wage policy.
unjust — not just; lacking in justice or fairness: unjust criticism; an unjust ruler.
