parastalgia

para- (beside, near, resembling, beyond) + nostalgia

the feeling of nostalgia, longing, or missing for something that never happened, as if it was an alternate timeline or a parallel universe; also see "anemoia" and "Mandela Effect"

adjective form: parastalgic

I feel parastalgia about high school dance even though I never went to one

by 2F5L-5XG February 22, 2021