unpolluted
adjective/ˌʌnpəˈluːtɪd/
/ˌʌnpəˈluːtɪd/
- that has not been polluted (= made dirty by harmful substances)
- the unpolluted air of the mountains
- Otters need secluded, unpolluted stretches of river with plenty of fish.
- The air was fresh and unpolluted.
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