1 original, primal, basic, primeval or Brit also primaeval, primitive, primordial, earliest, first, initial:
It is impractical to try to return the world to what some regard as its pristine purity
2 uncorrupted, pure, unsullied, undefiled, virginal, virgin, chaste, untouched, unspoiled, unpolluted, untarnished, spotless, immaculate, natural:
One must travel far today to experience the pristine beauty of nature. The car was in pristine condition.