F(eral)

feral adjective
fe·​ral | \ ˈfir-əl , ˈfer-; ˈfe-rəl \
Definition of feral
1 : of, relating to, or suggestive of a wild beast
feral teeth
feral instincts
2a : not domesticated or cultivated : WILD
feral animals
b : having escaped from domestication and become wild
feral cats