Retrospective in a sentence as a noun

I hope a similar retrospective in 50 years will see people saying "I find it surprising that there was discrimination against gay people at one time.

Retrospective in a sentence as an adjective

On the off chance that you are not just trolling...You seem to have this retrospective view of technology creation where anything that didn't pan out or doesn't connect to current technology was therefore a waste of time and effort.

Retrospective definitions

noun

an exhibition of a representative selection of an artist's life work

adjective

concerned with or related to the past; "retrospective self-justification"