Uncontaminated (adjective)

Not contaminated; free from impurities or pollutants.

Origin:

From un- + contaminated.

Examples:

1. The uncontaminated water source was crucial for the survival of the wildlife.
2. The uncontaminated soil provided the perfect environment for growing crops.
3. The uncontaminated air in the city was rare and highly valued.
4. Many uncompromised areas are designated as uncontaminated nature reserves.
5. The uncontaminated food was safe for consumption and free from harmful chemicals.