belligerent[adjective]Synonyms:- aggressive, bellicose, combative, hostile, pugnacious, unfriendly, warlike, warring
[noun]Synonyms:- fighter, combatant, warring nation 
Antonyms: friendly
Contrasted words: neutral, pacific, pacifist, peaceable, peaceful, conciliatory, amicable
Related Words: battling, 
fighting, 
warring, 
attacking, 
invading, 
aggressive, 
antagonistic, 
fierce, 
hostile, 
ardent, 
hot, 
hot-tempered [TahlilGaran] English Synonym Dictionary ▲
 bel‧lig‧er‧ent /bəˈlɪdʒərənt, bɪˈlɪdʒərənt/ 
 adjective[
Date: 1500-1600; 
Language: Latin; 
Origin: present participle of belligerare 'to fight a war', from bellum ( ⇒ bellicose) + gerere 'to carry on']
1.  very unfriendly and wanting to argue or fight
 Synonym : aggressive: 
 a belligerent attitude2.  [only before noun] formal
 a belligerent attitude2.  [only before noun] formal a belligerent country is fighting a war against another country
—belligerence, belligerency noun [uncountable]  [TahlilGaran] Dictionary of Contemporary English ▲