strife, enmity

WAR
WordClue
FEUDhereditary enmity
STRIFEwar, enmity
CONFLICTstrife in arms
ANIMOSITYenmity
HOSTILITYenmity, hatred
CONTENTIONstrife, conflict
CONFLICTstrife, discord
CONFLICTstrife in arms