undistinguishable
/ˌʌndɪˈstɪŋɡwɪʃəbəl/
adjective
- Impossible to tell apart or recognize as different; identical in appearance or nature.
- The twins were so alike that they were nearly undistinguishable to strangers.
- In the fog, the shapes of the buildings became undistinguishable from one another.
- The counterfeit bills were undistinguishable from real money without a special light.
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