thing of the past
Noun
Meaning
thing of the past (plural things of the past)
(idiomatic) Something that has gone extinct or become obsolete.
Synonyms
Antonyms
Examples
Well, the future for me is already a thing of the past.
The harvest-home or supper is a thing of the past. To those who feel the fascination of the past this may appear sad, but it is not so really for, even while it existed, this surface goodwill was often an empty show.
Spam will be a thing of the past in two years' time.
It is in the very nature of things human that every act that has once made its appearance and has been recorded in the history of mankind stays with mankind as a potentiality long after its actuality has become a thing of the past.
There's no such thing as an aura of mystery anymore. It doesn't exist. That's a thing of the past.
Troy is a thing of the past.