serving to distinguish or identify a species or group; "the distinguishing mark of the species is its plumage"; "distinctive tribal tattoos"; "we were asked to describe any identifying marks or distinguishing features"
having a habit of long standing; "a chronic smoker"
of persons; not subject to change; "a confirmed bachelor"; "a confirmed invalid"
having been established or made firm or received the rite of confirmation; "confirmed reservations"; "received confirmed reports of casualties"; "a confirmed Catholic"