unpolluted
- s free from admixture with noxious elements; clean
unpolluted streams
- Until such bold adventurers as Verrazano and Hudson penetrated its unpolluted waters, North America enjoyed extraordinary freedom from epidemics.
- In his vision of moviemaking as essentially a basement activity a controlled environment as unpolluted as possible by the egos and quirks of performers Conran is a lot .
- Wang says the Yangtze is relatively unpolluted.