adj. Wild, untamed, especially of domesticated animals having returned to the wild.adj. Contemptible, unruly, misbehaved.n. A domesticated animal that has returned to the wild; an animal, particularly a domesticated animal, living independently of humans.n. A contemptible young person, a lout, a person who behaves wildly.n. A person who has isolated themselves from the outside world; one living an alternative lifestyle.