Source : Webster's Revised Unabridged Dictionary (1913)

Dissentious \Dis*sen"tious\, a.
   Marked by dissensions; apt to breed discord; quarrelsome;
   contentious; factious. -- {Dis*sen"tious*ly}, adv.

Source : WordNet®

dissentious
     adj : dissenting (especially dissenting with the majority opinion)
           [syn: {divisive}, {factious}]