Con`tro*ver"sial (?), a. [Cf. LL. controversialis.] Relating to, or consisting of, controversy; disputatious; polemical; as, controversial divinity.
Whole libraries of controversial books.
Macaulay.
Con`tro*ver"sial*ist, n. One who carries on a controversy; a disputant.
He [Johnson] was both intellectually and morally of the stuff of which controversialists are made.
Macaulay.
Con`tro*ver"sial*ly, adv. In a controversial manner.
Con`tro*ver"sion (?), n. Act of controverting; controversy. [Obs.] Hooker.