DISPUTATIOUS

contentious, combative, disputatious, disputative, litigious

(adjective) inclined or showing an inclination to dispute or disagree, even to engage in law suits; “a style described as abrasive and contentious”; “a disputatious lawyer”; “a litigious and acrimonious spirit”

Source: WordNet® 3.1

Adjective

disputatious (comparative more disputatious, superlative most disputatious)

Of or relating to something that is in question as to its intent or value.

Inclined to argue or debate; provoking debate.

Synonyms: argumentative, contentious, quarrelsome, Thesaurus:quarrelsome

Antonyms: conciliatory, pacific, peaceable

Source: Wiktionary

Dis`pu*ta"tious, a.

Definition: Inclined to dispute; apt to civil or controvert; characterized by dispute; as, a disputatious person or temper. The Christian doctrine of a future life was no recommendation of the new religion to the wits and philosophers of that disputations period. Buckminster.

– Dis`pu*ta"tious*ly, adv.

– Dis`pu*ta"tious*ness, n.

Source: Webster’s Unabridged Dictionary 1913 Edition