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