Wiktionary
deprioritize
vb. reduce the level of priority
Usage examples of "deprioritize".
Or it may be that circumstances forced them to deprioritize the Gamma Quadrant—according to the Pathfinder database, the Valkyrie’ s mission to the Gamma Quadrant coincided with the Borg first contact with Species 8472.
Tensions built, and either no one in a position to intervene noticed the way things were going, or the problem was deprioritized in error.