RhymeZone: indistinction definitions

Definitions of indistinction:

noun: The fact of not distinguishing or making distinctions; failure to perceive or make a difference.
noun: The condition or fact of not being distinct or different; absence of distinguishing qualities or characteristics; undistinguishableness.
noun: (obsolete) Indistinctness, obscurity, dimness.
noun: (nonce use) Absence of distinction or eminence; obscurity.

(Definitions from Wiktionary)