Controversial :: Controversial (a.) Relating to, or consisting of, controversy; disputatious; polemical; as, controversial divinity..
Controversy :: Controversy (n.) Contention; dispute; debate; discussion; agitation of contrary opinions.
Controversy :: Controversy (n.) Quarrel; strife; cause of variance; difference.
Controversy :: Controversy (n.) A suit in law or equity; a question of right.