representative vs nonrepresentative

representative is a noun but nonrepresentative is not a noun.

Word	Noun	Adjective	Verb	Adverb
representative	Yes	Yes	No	No
nonrepresentative	No	Yes	No	No

representative (noun)	nonrepresentative (noun)
an item of information that is typical of a class or group
a person who represents others
a member of the United States House of Representatives
an advocate who represents someone else's policy or purpose

representative (adjective)	nonrepresentative (adjective)
standing for something else	not standing for something else
being or characteristic of government by representation in which citizens exercise power through elected officers and representatives
serving to represent or typify