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1. Not distinguishable, especially:
a. Impossible to differentiate or tell apart: indistinguishable twins; markings that make a moth indistinguishable from its background.
b. Impossible to discern; imperceptible: a sound that was indistinguishable to the human ear.
2. Difficult to understand or make out; vague: indistinguishable speech.

in′dis·tin′guish·a·ble·ness, in′dis·tin′guish·a·bil′i·ty n.
in′dis·tin′guish·a·bly adv.


[ˌɪndɪsˈtɪŋgwɪʃəblɪ] ADVsin distinción posible
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References in classic literature ?
If Fog were non-existent, all lines would appear equally and indistinguishably clear; and this is actually the case in those unhappy countries in which the atmosphere is perfectly dry and transparent.
They all appeared to him very young, indistinguishably alike (except for stature), and he knew that they were all brothers, and also immortal.
She used to paste these into books, or send them to her friends, having first drawn a broad bar in blue pencil down the margin, a proceeding which signified equally and indistinguishably the depths of her reprobation or the heights of her approval.
DISCOVERING A SOVIET-ERA RELIC A BLINDING sunrise allows us to fully appreciate hazy views from Kapp Linne's shoreline, with waves of wind-sculpted snow rolling indistinguishably into the sea.
122) The dissent even invited the reader "to peruse at random any number of the 167,250 uses of 'information' in the COCA and assess whether the term was reasonably used and understood as indistinguishably referring to true and false information.
Unlike the works downstairs, these were made of real industrial waste, and the assemblages blended indistinguishably into the genuine building works around the perimeter walls.
Jyotindra Jain observes that this period saw the rise of a "new and enchanting inter-visuality, predominantly governed by the emergent cinematic aesthetic that reconceptualized mythological calendar imagery, god posters, and magazine covers" and "brought into the market scores of artists whose styles were often indistinguishably intermingled.
2) "L2" will refer indistinguishably to both a second or foreign language in this study, that is, a language other than the students' L1 or native tongue.
Gastroparesis and delayed gastric emptying are two terms often used indistinguishably which has caused considerable perplexity in the clinical settings1.
Results on Simulated Data Simulated information give quantitative measures to think about the execution of various calculations author produce the test set in view of the technique that generatsaXm of length and t indistinguishably appropriated successions of length; then embed a random Xm example to a random position in each of the chose groupings.
Turing proposed that a program can be deemed intelligent if it can perform indistinguishably from a human in conversation (Floridi, 2012).