Definitions of indistinguishable

1. Indistinguishably.

2. not capable of being distinguished or differentiated; " the two specimens are actually different from each other but the differences are almost indistinguishable"; " the twins were indistinguishable"; " a colorless person quite indistinguishable from the colorless mass of humanity"

3. Not distinguishable; not capable of being perceived, known, or discriminated as separate and distinct; hence, not capable of being perceived or known; as, in the distance the flagship was indisguishable; the two copies were indisguishable in form or color; the difference between them was indisguishable.

4. Undistinguishable.

5. That cannot be distinguished or separated.