disputatious
From Longman Dictionary of Contemporary Englishdisputatiousdis‧pu‧ta‧tious /ˌdɪspjəˈteɪʃəs/ adjective formal ARGUEtending to argue SYN argumentativeExamples from the Corpusdisputatious• How right you are, very clever, very ... disputatious.• They go in for querulous and disputatious argument.• But, with some few exceptions, the main results had been disputatious wrangling.