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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.
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.
They all appeared to him very young, indistinguishably alike (except for stature), and he knew that they were all brothers, and also immortal.
2 to grasp the problem); also, part of the bones from the two stone-cist graves are indistinguishably intermingled.
178), in which a person's character in business and character in society blend into each other almost indistinguishably.
The emotion and intellect are not two distinct faculties, but they are indistinguishably fused.
Cosmopolitan humanism, then, simultaneously and indistinguishably cherishes the unity of purpose that is intrinsic to pursuing life's higher values and the diversity that must characterize attempts to realize that potential.
Though there are several reasons which are responsible for the improvement in the numbers of girl child, one factor which indistinguishably stands out is the presence of Deshpande, who has been spearheading a campaign against sex determination of the unborn child for almost three decades now.
Distance: Remember all that land beneath the plane; that coastline of dim beaches deep in sand stretching indistinguishably an the way, all the way to where my reasons end?
Assay specificity tests by constructing dose-response curves for synthetic hepcidin-20, -22, -24, and -25 showed that the Anticalin-based assay detected hepcidin-25, as well as all 3 smaller isoforms, virtually indistinguishably.
Given the numerous etiologies of myelopathy, and the fact that cervical myelopathy presents either vaguely similar to or near indistinguishably from a multitude of pathologies, the differential diagnosis is very broad.