uncare

From un- +‎ care.

uncare (third-person singular simple present uncares, present participle uncaring, simple past and past participle uncared)

1. (intransitive) To cease from caring
   • 2007, Sally Watson, The Ivory Cat:

     A shattering thought struck her. She had allowed it to happen, after all! Permitted herself to care about her companions! And it was too late now to uncare!

uncare (uncountable)

1. Lack or absence of care
   • 1998, Ken Wilber, The Essential Ken Wilber:

     And gone the Godless destiny of death and desperation, and gone the madness of a life committed to uncare, and gone the tears and terror of the brutal days and endless nights where time alone would rule.