Living in a state of nature; inhabiting natural haunts, as the forest or open field; not familiar with, or not easily approached by, man; not tamed or domesticated; as, a wild boar; a wild ox; a wild cat.(adjective)
source: webster1913
noun (n)
a wild primitive state untouched by civilization(noun.state)
Example: He lived in the wild.
They collected mushrooms in the wild.