1. Prejudice: This emphasizes an unfavorable opinion or feeling formed beforehand, often without knowledge or reason.
2. Bias: This suggests a preference for or against something, often in an unfair way.
3. Bigotry: This is a stronger term that refers to intolerant and prejudiced behavior, especially against those of a different race, religion, or political opinion.
4. Segregation: This refers to the act of separating people based on race, religion, or other factors.
5. Inequality: This emphasizes a lack of fairness or equal treatment.