indistinguishable

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

無法區分的, 難以辨別的

not able to be identified as different or distinct

:
The twins were almost indistinguishable.
這對雙胞胎幾乎無法區分
The fake banknotes were indistinguishable from the real ones.
假鈔與真鈔無法區分