hostile, unfriendly
Qu'arrivera-t-il s'ils deviennent hostiles ?
What will happen if they become hostile?
— Independence Day (1996)
Des intentions hostiles me semblent illogiques.
Hostile intentions seem illogical to me.
— Star Trek IV : Retour sur Terre (1986)
Restez amicaux vis-à-vis de vos amis et hostiles vis-à-vis de vos ennemis.
Stay friendly to your friends and hostile to your enemies.