impure

/ɪmˈpjʊr/
adjective
  1. Mixed with something else that is not pure; not clean or not of good quality.
    • They tested the gold and found it was impure, containing traces of copper.
    • Impure air in the city can cause breathing problems.
    • The water from the old well was impure and unsafe to drink.
  2. Morally wrong or not honest; involving bad intentions or thoughts.
    • The knight swore to rid the kingdom of impure desires.
    • The leader's impure motives were revealed in the scandal.
    • She felt guilty for having impure thoughts about her friend's partner.
Antonyms
What does "impure" mean? | whatsthatwordmean | whatsthatwordmean