indistinguishable
/ˌɪndɪˈstɪŋɡwɪʃəbəl/
adjective
- Impossible to tell apart; so similar that one cannot be distinguished from another.
- His voice on the phone was almost indistinguishable from his brother's.
- In the fog, the shapes of the buildings were indistinguishable.
- The two paintings were indistinguishable to the untrained eye.
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