Discriminatory refers to any practice or behavior that involves treating people differently based on their characteristics, such as race, gender, age, religion, nationality, etc. This can include acts of exclusion, prejudice, and unfair treatment, which are often considered to be wrong or unjust. Discrimination can occur in various settings, including employment, education, housing, healthcare, and the legal system, among others. It is generally seen as being against social norms and may even violate laws in some countries.