Not capable of being discerned, of being perceived. / Not capable of being distinguished from something else.

(chiefly philosophy) Something which is incapable of being discerned.

plural of indiscernible

Synonym of indiscernibility

The state or characteristic of being indiscernible; inability to be observed. / (often philosophical) Inability to be perceived as distinct from something else; indistinguishability .

In a way that cannot be discerned.

plural of indiscernibility

(philosophy) The principle that, if two objects are indistinguishable from one another with respect to all of their properties, then they are identical.

(philosophy) The principle that if two objects are absolutely identical then they must be indistinguishable from one another with respect to all of their properties.