adj.
Pronunciation: ( ˌ )im- ' pyu ̇ r
Function: adjective
Etymology: Middle English, from Middle French & Latin; Middle French, from Latin impurus, from in- + purus pure
Date: 15th century
: not pure: as a : LEWD , UNCHASTE b : containing something unclean : FOUL < impure water> c : ritually unclean d : mixed or impregnated with an extraneous and usually unwanted substance <an impure chemical>
– im · pure · ly adverb
– im · pure · ness noun