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Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Not pure or clean; contaminated.
  • adj. Not purified by religious rite; unclean.
  • adj. Immoral or sinful: impure thoughts.
  • adj. Mixed with another, usually inferior substance; adulterated.
  • adj. Being a composite of more than one color or mixed with black or white.
  • adj. Deriving from more than one source, style, or convention; eclectic: an impure art form.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Not pure; not clean; dirty; foul; filthy; containing something which is unclean or unwholesome; mixed or impregnated extraneous substances; adulterated; as, impure water or air; impure drugs, food, etc.
  • adj. Defiled by sin or guilt; unholy; unhallowed; -- said of persons or things.
  • adj. Unchaste; lewd; unclean; obscene; as, impure language or ideas.
  • v. (obsolete) to defile; to pollute

from the GNU version of the Collaborative International Dictionary of English

  • adj. Not pure; not clean; dirty; foul; filthy; containing something which is unclean or unwholesome; mixed or impregnated extraneous substances; adulterated
  • adj. Defiled by sin or guilt; unholy; unhallowed; -- said of persons or things.
  • adj. Unchaste; lewd; unclean; obscene.
  • adj. Not purified according to the ceremonial law of Moses; unclean.
  • adj. Not accurate; not idiomatic
  • transitive v. To defile; to pollute.

from The Century Dictionary and Cyclopedia

  • Not pure physically; mixed or impregnated with extraneous, and especially with offensive, matter; foul; feculent; tainted: as, impure water or air; impure salt or magnesia.
  • Not simple or unmixed; mixed or combined with something else: said of immaterial things.
  • Not pure morally; unchaste; obscene; lewd: as, impure language or ideas; impure actions.
  • Of a contaminating nature; causing defilement, physical or moral; unclean; abominable.
  • Not in conformity with a standard of correctness, simplicity, etc.: as, an impure style of writing.
  • To make impure; defile.
  • To grow impure.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. combined with extraneous elements
  • adj. (used of persons or behaviors) immoral or obscene
  • adj. having a physical or moral blemish so as to make impure according to dietary or ceremonial laws

Etymologies

From Latin impurus (Wiktionary)

Examples

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