1. The quality or state of being impure; lack of purity.
Usage: Plural form of impureness; Often used in formal or technical contexts
2. Impure substances or elements mixed with something pure.
Usage: Plural form referring to multiple instances or types of impure matter

Examples

• The water treatment plant removes various impurenesses before distribution.
• Chemical analysis revealed several impurenesses in the metal sample.
• The impurenesses in the fabric dye affected the final color.
• Scientists tested the compound for impurenesses using advanced equipment.
• The artist was concerned about impurenesses in the pigment.
• Industrial processes must minimize impurenesses in pharmaceutical products.