The answer would be "descriptive" words, or if you're looking for a more broad answer, it would be "imagery". :)
Discrimination is when you treat someone in a disrespectful manner based on their age, sex, race, etc.
Age discrimination is when you disrespect someone based on their age.
For example, a cashier follows a teenager around the store because they believe they are going to steal something since they're young and naive. Or, not letting an elder in to a club because they're too old to dance.
Answer:
A synonym would be...d eclined or refused
An antonym would be...approve or authorize
Explanation: