Discrimination refers to unjust or unequal treatment based on certain characteristics such as race, gender, religion or age. There are numerous synonyms for this word, including bias, prejudice, intolerance, bigotry, favoritism, and inequality. Bias refers to a preference for one group over another, while prejudice is the preconceived negative attitude or belief towards a certain group. Intolerance often implies an unwillingness to accept different views, practices, or beliefs. Bigotry is characterized by an extreme or irrational distrust or hatred of those who differ from oneself. Favoritism is partiality shown to a particular person or group, while inequality refers to the state of being unequal or unjust.