[ɪmˈpjɔː], (Adjective)

Definitions:
- mixed with foreign matter; adulterated
(e.g: an impure form of heroin)

- morally wrong, especially in sexual matters
(e.g: citizens suspected of harbouring impure thoughts)


Phrases:

Origin:
late Middle English (in the sense ‘dirty, containing offensive matter’): from Latin impurus, from in- ‘not’ + purus ‘pure’