Antonyms of adj impure

3 senses of impure

Sense 1
impure (vs. pure) -- (combined with extraneous elements)

pure (vs. impure) -- (free of extraneous elements of any kind; "pure air and water"; "pure gold"; "pure primary colors"; "the violin's pure and lovely song"; "pure tones"; "pure oxygen")
        => axenic -- ((used of cultures of microorganisms) completely free from other organisms; "an axenic culture")
        => clean, fresh -- (free from impurities; "clean water"; "fresh air")
        => clean, clear, light, unclouded -- ((of sound or color) free from anything that dulls or dims; "efforts to obtain a clean bass in orchestral recordings"; "clear laughter like a waterfall"; "clear reds and blues"; "a light lilting voice like a silver bell")
        => fine -- (free from impurities; having a high or specified degree of purity; "gold 21 carats fine")
        => native -- (as found in nature in the elemental form; "native copper")
        => plain, sheer, unmingled, unmixed -- (not mixed with extraneous elements; "plain water"; "sheer wine"; "not an unmixed blessing")
        => pristine -- (completely free from dirt or contamination; "pristine mountain snow")
        => sublimate -- (made pure)
        => unadulterated -- (not mixed with impurities; "unadulterated maple syrup")
        => unalloyed -- (free from admixture; "unalloyed metal"; "unalloyed pleasure")
        => uncontaminated, unpolluted -- (free from admixture with noxious elements; clean; "unpolluted streams"; "a contaminated lake")
        => virginal -- (untouched or undefiled; "nor is there anything more virginal than the shimmer of young foliage"- L.P.Smith)

Sense 2
impure (vs. pure) -- ((used of persons or behaviors) immoral or obscene; "impure thoughts")

pure (vs. impure) -- ((used of persons or behaviors) having no faults; sinless; "I felt pure and sweet as a new baby"- Sylvia Plath; "pure as the driven snow")
        => immaculate, undefiled -- (free from stain or blemish)
        => white -- (free from moral blemish or impurity; unsullied; "in shining white armor")

Sense 3
unclean (vs. clean), impure -- (having a physical or moral blemish so as to make impure according to dietary or ceremonial laws; "unclean meat"; "and the swine...is unclean to you"-Leviticus 11:3)


Similarity of adj impure

3 senses of impure

Sense 1
impure (vs. pure) -- (combined with extraneous elements)
       => technical-grade, technical grade -- (containing small amounts of other chemicals, hence slightly impure; "technical-grade sulfuric acid")
       => adulterate, adulterated, debased -- (mixed with impurities)
       => alloyed -- ((used of metals) debased by mixture with an inferior element)
       => bastardized, bastardised -- (deriving from more than one source or style)
       => contaminated, polluted -- (rendered unwholesome by contaminants and pollution; "had to boil the contaminated water"; "polluted lakes and streams")
       => dirty, dingy, muddied, muddy -- ((of color) discolored by impurities; not bright and clear; "dirty" is often used in combination; "a dirty (or dingy) white"; "the muddied grey of the sea"; "muddy colors"; "dirty-green walls"; "dirty-blonde hair")
       => unpurified -- (not made pure)
          Also See-> unclean#2, impure#3; unprocessed#2

Sense 2
impure (vs. pure) -- ((used of persons or behaviors) immoral or obscene; "impure thoughts")
       => defiled, maculate -- (morally blemished; stained or impure)
          Also See-> unchaste#1

Sense 3
unclean (vs. clean), impure -- (having a physical or moral blemish so as to make impure according to dietary or ceremonial laws; "unclean meat"; "and the swine...is unclean to you"-Leviticus 11:3)
       => nonkosher, tref, terefah -- (not conforming to dietary laws)
       => untouchable -- (( especially used in traditional Hindu belief of the lowest caste or castes) defiling)
          Also See-> impure#1