feralReferring to a state of wildness or living outside of civilization
Definitions:
Existing in a natural state, as animals or plants; not domesticated or cultivated; wild."He was almost like a feral creature, wild and untamed."
vigilanceThe act or state of keeping careful watch for danger or difficulties
Definitions:
The action or state of keeping careful watch for possible danger or difficulties."His vigilance saved him from many potential hazards."
predatorAn animal or human that hunts and kills for food
Definitions:
An animal that naturally preys on others."The lion, as a predator, always looked for the weakest in the herd."
A person who ruthlessly exploits others."He was a predator in the world of business, always ready to take advantage of weakness."
territoryA particular area or piece of land
Definitions:
An area of land under the jurisdiction of a ruler or state."The king had extensive territory that he ruled over."
An area defended by an animal or group of animals against others of the same sex or species."The pack of wolves had marked their territory clearly."
adversaryA rival or opponent
Definitions:
One's opponent in a contest, conflict, or dispute."He saw his adversary across the field and knew he would have to give everything to beat him."