is an obstinate and unreasoning attachment to one's own beliefs and opinions; narrow-minded intolerance of opposing beliefs and opinions.
Intolerance of anyone's creed, belief, or opinion. Someone who votes Republican.
Prejudice carried to the extreme of overt hatred, often carried to the point of violence.
A bigot is a prejudiced person who is intolerant of opinions, lifestyles, or identities differing from his or her own.