feral
/ˈfir-əl/
adjective
of, relating to, or suggestive of a wild beast
not domesticated or cultivated : wild
having escaped from domestication and become wild
feral teeth
brutal brutish bestial feral mean characteristic of an animal in nature, action, or instinct. brutal applies to people, their acts, or their words and suggests a lack of intelligence, feeling, or humanity. brutish stresses likeness to an animal in low intelligence, in base appetites, and in behavior based on instinct.