disputatious (adj.)

• aggressive
• argumentative
• bellicose
• belligerent
• combative
• complaining
• contentious
• controversial
• dialectic
• dissentient
• dissenting
• divisive
• eristic
• factious
• fractious
• ill-humored
• irascible
• irritable
• litigious
• obstructive
• partisan
• polemic
• polemical
• pugnacious
• quarrelsome
• rebellious
• recalcitrant
• refractory
• reluctant
• repellent
• resistant
• resisting
• resistive
• retardant
• scrappy
• shrewish
• uncooperative
• unsubmissive
• unyielding