CONTENTIOUSLY
Scrabble letter values: C3O1N1T1E1N1T1I1O1U1S1L1Y4 = 18
Definition
CONTENTIOUSLY is the adverb form of CONTENTIOUS.
adjective CONTENTIOUS: inclined or showing an inclination to dispute or disagree, even to engage in law suits.
Synonyms of CONTENTIOUS: combative, disputatious, disputative, litigious