Definition of belligerent adjective from the Oxford Advanced American Dictionary

belligerent

adjective
/bəˈlɪdʒərənt/
 
 
1 unfriendly and aggressive synonym hostilea belligerent attitudeHe is always very belligerent toward me.2 [only before noun] (formal) (of a country) fighting a warthe belligerent countries/states/nations belligerence
/bəˈlɪdʒərəns/
 
noun [uncountable]
belligerently
 
adverb