American English

Definition of indistinguishable adjective from the Oxford Advanced American Dictionary



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  1. 1indistinguishable (from something) if two things are indistinguishable, or one is indistinguishable from the other, it is impossible to see any differences between them The male of the species is almost indistinguishable from the female.
  2. 2not clear; not able to be clearly identified His words were indistinguishable.
See the Oxford Advanced Learner's Dictionary entry: indistinguishable