be careful, because impure motor oil can damage your car's engine
Victorian notions of what qualified as impure art now strike us as laughable.
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In any case, playing Bach on a concert grand is an inherently impure act; Bach knew of no such instrument.—Alex Ross, The New Yorker, 10 Mar. 2025 Two major developments in the mid-1800s showed why impure water is dangerous.—Bill Sullivan, The Conversation, 27 Jan. 2025 Pop entered a renaissance thanks to smart young women sharing impure thoughts.—Spencer Kornhaber, The Atlantic, 17 Dec. 2024 Wad, perhaps the most abundant, is a dark-brown-to-black, very soft, earthy mineral that is commonly considered an impure hydrous oxide of manganese.—arkansasonline.com, 30 Nov. 2024 See All Example Sentences for impure
Word History
Etymology
Middle English, from Middle French & Latin; Middle French, from Latin impurus, from in- + purus pure
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