hostilities vs hostile

hostilities and hostile both are nouns.

Word	Noun	Adjective	Verb	Adverb
hostilities	Yes	No	No	No
hostile	Yes	Yes	No	No

hostilities (noun)	hostile (noun)
fighting; acts of overt warfare	troops belonging to the enemy's military forces

hostilities (adjective)	hostile (adjective)
	characterized by enmity or ill will
	not belonging to your own country's forces or those of an ally
	unsolicited and resisted by the management of the target company (used of attempts to buy or take control of a business)
	very unfavorable to life or growth
	impossible to bring into friendly accord