Treating one or more members of a specified group unfairly as compared with other people. What does the noun discrimination mean?A central problem is how to define discrimination, both in its most basic direct sense and in the most prominent variations. The practice of treating someone or a particular group in society less fairly than others. DISCRIMINATION meaning: 1. Treating a person or particular group of people differently, especially in a worse way from the…. Discrimination is an action or practice that excludes, disadvantages, or merely differentiates between individuals or groups of individuals Racial and religious intolerance and discrimination. Discrimination is a key concept in a number of areas of international law, such as foreign investment law and international trade agreements. The meaning of DISCRIMINATION is prejudiced or prejudicial outlook, action, or treatment.