Lord of the Flies uses the word inimical. What does it mean?

Inimical means hostile, unfriendly, or like an enemy; adverse, unfavorable. In William Golding's Lord of the Flies, Ralph is hiding from Jack and his tribe when he (Ralph) calls out quietly to Samneric:

To carry he must speak louder; and this would rouse those striped and inimical creatures from their feasting by the fire.