Aphantalgia 

Aphantalgia (noun):

A sentiment often triggered upon encountering a subject or skill that one was once proficient in, but has not engaged with for an extended period, leading to its disappearance from one's cognitive grasp.

Upon stumbling upon his old guitar gathering dust in the attic, John was overcome with a wave of aphantalgia, a poignant longing for the musical skills that had faded away due to years of neglect.

Aphantalgia by Kewk July 2, 2023

aphantasia 

is the inability to voluntarily create mental images in one's mind. The phenomenon was first described by Francis Galton in 1880 but has since remained relatively unstudied

I HAVE aphantasia SO I CAN'T SEE PICTURES IN MY HEAD.

WAIT REALLY? PICTURE AN APPLE WHAT DO YOU SEE?

NOTHING!!

aphantasia by LOOKSLIKEIMNOTOKAY November 4, 2022

aphantasia 

Aphantasia is a misnomer, commonly referring to the inability to create pictures or images within your head. It affects less than 2% of the population. It does not affect visual memory or imagination/creativity.
A good metaphor is if you imagine your brain as a computer, your eyes as a keyboard, and your mind's eye as a monitor. The computer and keyboard still work, but the monitor is unplugged.

"I have aphantasia."
"What is that?"
"It's a condition that means I can't visualize something."

aphantasia by ShadowDev November 24, 2023

Aphantasiac

A person who has little to no ability to create mental images, and "sees" through concepts, feelings, and/or inner narration

The aphantasiac mapped out the room in their head without ever visualizing it

Aphantasiac by theyear2763 February 8, 2026