1. (adj)Aboriginal of or pertaining to members of the indigenous people of Australia "an Aboriginal rite"
2. (adj)native, aboriginal characteristic of or relating to people inhabiting a region from the beginning "native Americans"; "the aboriginal peoples of Australia"
3. (adj)aboriginal, primal, primeval, primaeval, primordial having existed from the beginning; in an earliest or originalstage or state "aboriginal forests"; "primal eras before the appearance of life on earth"; "the forest primeval"; "primordial matter"; "primordial forms of life"