Unreasonable
Part of speech: adjective
Definition: not reasonable
Example sentence: When I was saying, 'White people go to hell,' I never had trouble finding a publisher. But when I say, 'Black and white unite and fight, destroy capitalism,' then you suddenly become unreasonable.
Unwarranted
Part of speech: adjective
Definition: Not warranted; being without warrant, authority, or guaranty; unwarrantable.