n. 25B6; adjective
a belligerent stare : HOSTILE, aggressive, threatening, antagonistic, pugnacious, bellicose, truculent, confrontational, contentious, militant, combative; informal spoiling for a fight; Brit. informal stroppy, bolshie; N. Amer. informal scrappy; rare oppugnant.
the belligerent states : WARRING, at war, combatant, fighting, battling.
peaceable, neutral.