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English definition of “indistinguishable”

indistinguishable

adjective uk   /ˌɪn.dɪˈstɪŋ.ɡwɪ.ʃə.bl̩/ us  
impossible to judge as being different when compared to another similar thing: These forgeries are so good that they are more or less indistinguishable from the originals.
(Definition of indistinguishable from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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