disputatious

Etymology

From disputation, equivalent to disputati(on) + -ous.

adj

1. Of or relating to something that is in question as to its intent or value.
2. Inclined to argue or debate; provoking debate.
   He was followed by a disputatious gentleman, who had the temerity to maintain before the royal misocapnist (the Counterblast had not as yet issued from the monarch's lips, but his anti-nicotian prejudices were well known,) the thesis, that "tobacco must needs be good;" proceeding to his proof "by enumeration or induction, because Kings, Princes, Nobles, Earles, Lords, Knights, Gentlemen of all Countries and Nations, reckoning a number, loved it." 1864, “Visit of King James to Oxford in 1605: Tobacologia: Date of ‘Macbeth’”, in Notes and Queries, page 301
   Certainly there have been bitterly contested elections in this country before. Party spirit is always rife, and in such vivid, excitable, disputatious communities as ours are, and I trust always will be, it is the very soul of freedom. 20 October 1868, John Lothrop Motley, Four Questions for the People, at the Presidential Election: Address of John Lothrop Motley, before the Parker Fraternity, at the Music Hall, October 20, 1868, Boston, Mass.: Ticknor and Fields, →OCLC, page 4