Hostile
/ˈhɒstaɪl/
noun
(chiefly in the plural) An enemy.
adjective
Not friendly, appropriate to an enemy; showing the disposition of an enemy; showing ill will and malevolence, or a desire to thwart and injure
“a hostile country”
Aggressive, antagonistic.
Unwilling
Synonyms: antagonistic, hateful, inimical, unfriendly