1. Being biased or having a belief or attitude formed beforehand
   - prejudiced 
2. Containing or implying a slight or showing prejudice
   "discriminatory attitudes and practices"
   - invidious 
3. Capable of making fine distinctions
   - discriminative 
4. Manifesting partiality
   "a discriminatory tax"
   - preferential

See also: advantageous, antiblack, anti-Semite, discriminate, discriminating, homophobic, jaundiced, loaded, racist, sexist, unfavorable [US], unfavourable [Brit, Cdn]

Encyclopedia: Discriminatory

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