unthink

present singular third person unthinks · participle present unthinking · participle past unthought · past unthought

1. intransitivetransitiveTo undo the process of thinking.

   "You must learn to edit your thoughts," she said. "Unthink them..."

   2019, Margaret Atwood, The Testaments, →ISBN, page 333

   3 more examples

   They at least had the immense and mighty imagination of which I speak; they could unthink the past. They could uncreate the Fall. With a reverence which moderns might think impudence, they could uncreate the Creation.

   1930, G. K. Chesterton, The Resurrection of Rome

   But to do so consistently would require a fairly radical revision of the concept. We should have to unthink as far back as Aristotle […]

   1993, Henning F Harmuth, Information Theory Applied to Space-time Physics

   In An Experiment with an Air-Pump, characters repeatedly assert that "once you've thought something, you can't unthink it, can you?"

   2006, Kirsten Shepherd-Barr, Science on Stage: From Doctor Faustus to Copenhagen