indistinction

noun4

1. •
   The condition or fact of not being distinct or different; absence of distinguishing qualities or characteristics; undistinguishableness.
2. •
   The fact of not distinguishing or making distinctions; failure to perceive or make a difference.
3. •
   Absence of distinction or eminence; obscurity.
4. •
   (no longer used) Indistinctness, obscurity, dimness.