Natural
Natural adjective - Being such from birth or by nature.
Unpolluted and natural are semantically related In some cases you can use "Unpolluted" instead an adjective "Natural".
Unpolluted
Unpolluted adjective - Free from admixture with noxious elements; clean.
Natural and unpolluted are semantically related in fresh topic. Sometimes you can use "Natural" instead an adjective "Unpolluted", if it concerns topics such as clean.
Both words in one sentence
- Okay, returning Japan to its natural -- green and unpolluted -- state sounds like a good idea.
Source: Utopia Justifies the Means
Cite this Source
Unpolluted and Natural. (2016). Retrieved 2026, July 27, from https://thesaurus.plus/related/natural/unpolluted
Natural & Unpolluted. N.p., 2016. Web. 27 Jul. 2026. <https://thesaurus.plus/related/natural/unpolluted>.
Unpolluted or Natural. 2016. Accessed July 27, 2026. https://thesaurus.plus/related/natural/unpolluted.
Google Ngram Viewer shows how "natural" and "unpolluted" have occurred on timeline