Indiscernible
Pronunciation : In`dis*cern"i*ble
Part of Speech : a.
Etymology : [Pref. in- not + discernible: cf. F. indiscernable.]
Definition : Defn: 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.
Source : Webster's Unabridged Dictionary, 1913