Bigotry

A bigot is a person obstinately or intolerantly devoted to his or her own opinions and prejudices, especially one exhibiting intolerance, irrationality, and animosity toward those of differing beliefs. The predominant usage in modern American English refers to persons hostile to those of differing race, ethnicity, nationality, sexual orientation and religion.

Prejudice

A prejudice is a prejudgment: i.e. an assumption made about someone or something before having adequate knowledge to be able to do so with guaranteed accuracy. The word prejudice is most commonly used to refer to a preconceived judgment toward a people or a person because of race, social class, gender, ethnicity, age, disability, political beliefs, religion, sexual orientation or other personal characteristics. It also means a priori beliefs (without knowledge of the facts) and may include "any unreasonable attitude that is unusually resistant to rational influence."  Both positive and negative prejudice exist; when used negatively "prejudice" implies fear and antipathy toward its subject, whilst when used positively can be used to describe intrinsic or subconscious preferences (such as tastes).