indistinguishable

US /ˌɪn.dɪˈstɪŋ.ɡwɪ.ʃə.bəl/
UK /ˌɪn.dɪˈstɪŋ.ɡwɪ.ʃə.bəl/
"indistinguishable" picture
1.

not able to be identified as different or distinct

:
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The twins were almost indistinguishable.
•
The fake banknotes were indistinguishable from the real ones.
:
identicalalikesimilarmatchinguniform
:
distinguishabledistinctdifferent