little evolved from or characteristic of an earlier ancestral type; "archaic forms of life"; "primitive mammals"; "the okapi is a short-necked primitive cousin of the giraffe"
shaped or conditioned or disciplined by training; often used as a combining form; "a trained mind"; "trained pigeons"; "well-trained servants"
having acquired necessary skills by e.g. undergoing a course of study; "a trained nurse"; "a trained voice"; "trained manpower"; "psychologically trained workers"
having existence or being or actuality; "an attempt to refine the existent machinery to make it more efficient"; "much of the beluga caviar existing in the world is found in the Soviet Union and Iran"