unimpregnated
/ˌʌnɪmˈprɛɡneɪtɪd/
adjective
- Not having been filled, soaked, or saturated with a substance.
- The soil was unimpregnated with nutrients, so the plants struggled to grow.
- The cloth remained unimpregnated with the waterproofing solution.
- The filter was unimpregnated with activated charcoal, so it did not remove odors.
Synonyms