Synonyms of belligerence

3 Syllables
crankiness, impugnment, aggression
4 Syllables
pugnacity, hostilities, pugnaciousness, antagonism, hostility, acrimony, militance, contentiousness, truculency, truculence, militancy
5 Syllables
animosity, bellicoseness, bellicosity, belligerency, quarrelsomeness, combativeness, aggressiveness, disputatiousness, combativity
7 Syllables
argumentativeness