Two basic characteristics not related to memory are apathy and indifference or callousness.
Some readers were upset by the callousness of hedge fund traders.
Cry out against the callousness toward the first responders to the Twin Towers on 9/11.
But the Butes, then, were proverbially notorious for their callousness and their ingratitude.
Perhaps the fate of Niobe is no fable, but a type of the callousness of our nature.
To humor him in his delusion seemed the height of callousness.
For all my callousness I was sick and unmanned by that which had befallen.
To have gone off at once to China like that proved his callousness and indifference.
"Pooh, she didn't have to pay much," said Judith with the callousness of childhood.
Rose received the news with a callousness which made even Lady Helen want to shake her.
c.1400, "hardened," in the physical sense, from Latin callosus "thick-skinned," from callus, callum "hard skin" (see callus). The figurative sense of "unfeeling" appeared in English by 1670s. Related: Callously; callousness.
callous cal·lous (kāl'əs)
Of, relating to, or characteristic of a callus or callosity.