unchoose

From un- +‎ choose.

unchoose (third-person singular simple present unchooses, present participle unchoosing, simple past unchose, past participle unchosen)

1. (transitive) To not choose; choose against; deselect; reject.
   • 2006, Richard Allen Wainess, The Effect of Navigation Maps on Problem Solving Tasks:

     At the point where a goal is perceived as too easy to be worth investment of effort, effort is reduced as we “unchoose” the goal.

   • 2010, Andrew Hudgins, American Rendering:

     One glory of a family is you'd never choose your kin and can't unchoose your daddy's hazel eyes — no more than you could unchoose your hand.

   • 2011, Brad Fern, Tom Lutz, From Ashes to Gold:

     In other words, if the depression is a survival mechanism chosen by the woman when she was a child, then it is within her power to unchoose depression and to heal.