Adjective
1. being biased or having a belief or attitude formed beforehand;
"a prejudiced judge"2. containing or implying a slight or showing prejudice;
"discriminatory attitudes and practices""invidious comparisons"3. capable of making fine distinctions
4. manifesting partiality;
"a discriminatory tax""preferential tariff rates""preferential treatment""a preferential shop gives priority or advantage to union members in hiring or promoting"