the.com/disbelief
The mind slamming the door on a fact still ringing the bell.
means The refusal or inability to accept something as true, real, or possible.
from From dis- (the un-doing prefix) plus belief, both rooted in Old English, stitched together in the 1600s to name the brain's polite no thank you to reality.
Suspended kindFiction survives on willingly pausing your disbelief.
Grief stageDenial is disbelief wearing a coping costume.
Not doubtDoubt wavers; disbelief has already decided no.