First attested in 1624; formed as in- + distinction, after indistinct.
indistinction (countable and uncountable, plural indistinctions)
- The fact of not distinguishing or making distinctions; failure to perceive or make a difference.
- The condition or fact of not being distinct or different; absence of distinguishing qualities or characteristics; undistinguishableness.
- (obsolete) Indistinctness, obscurity, dimness.
- (nonce use) Absence of distinction or eminence; obscurity.