impure
adjective /ɪmˈpjʊə(r)/
/ɪmˈpjʊr/
- not pure or clean; not consisting of only one substance but mixed with one or more substances often of poorer quality
- impure gold
- Some of these drugs are highly impure.
- (old-fashioned or formal) (of thoughts or feelings) morally bad, especially because they are connected with sex
- impure thoughts/motives
opposite pure
Word Originlate Middle English (in the sense ‘dirty, containing offensive matter’): from Latin impurus, from in- ‘not’ + purus ‘pure’.