Meaning & use
impure
Mixed with other substances that make something unclean, contaminated, or less pure.
See it in a sentence
The impure water needed to be filtered before it was safe to drink.
Traces of metal made the gold sample impure.
A note on using this word
Impure applies mainly to substances and materials; it is rarely used to describe abstract ideas in modern English.
Words with a similar meaning
contaminatedadulterated
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
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