Prejudice is the formation of an unfavourable opinion or attitude about someone or a group of people without the existence of any particular reason for it. These notions and negative opinion are based solely on the race, colour, nationality, gender, caste, etc. There are different types of prejudices:
1) Racial prejudice: It emerges from the belief that a particular race is superior to others.
2) Gender prejudice: It is the stereotyping of roles to a particular gender. For example, saying that women are not meant for engineering, science or math is having a prejudice or a preconceived notion against women.
3) Religious prejudice: It is considering a person difference because of his/her religion.