Indiscernible

In′dis‐cern″i‐ble (?), a. [Pref. in- not + discernible: cf. F. indiscernable.] Not to be discerned; imperceptible; not discoverable or visible.

Secret and indiscernible ways. Jer. Taylor.

— In′dis‐cern″i‐ble‐ness, n. — In′dis‐cern″i‐bly, adv.