in·discernible I. \|in+\adjective Etymology:in- (I) + discernible : incapable of being discerned: a.: not visible or perceptible < his features were indiscernible — G.B.Shaw > b.: incapable of being recognized as distinct < thought that good was indiscernible from evil > • in·discernible·ness\“+\noun • in·discernibly\“+\adverb II. noun (-s) : something indiscernible; specifically: something that cannot be recognized as distinct