oˈblivionistn.rare a person who believes that something specified will be consigned to oblivion.
ΘΚΠ
the mind > mental capacity > memory > faulty recollection > [noun] > one who forgets
forgetter1398
oblivionist1878
amnesiac1913
1878 T. SinclairMount ii. 22 Imaginations..are not dependent on the fleeting changes of the world of the understanding. The oblivionists do not clearly see the whole truth here.