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impervious vs acid-fast

acid-fast vs impervious

impervious and acid-fast both are adjectives.

Word NounAdjectiveVerbAdverb
impervious No Yes No No
acid-fast No Yes No No
impervious (adjective) acid-fast (adjective)
not admitting of passage or capable of being affected not easily decolorized by acid solutions; pertains to micro-organisms (especially the tubercle bacillus that causes tuberculosis)
Difference between impervious and acid-fast

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