a thing of the past
US /ə θɪŋ əv ðə pæst/
UK /ə θɪŋ əv ðə pæst/

1.
something that no longer exists or happens
:
•
Dial-up internet is definitely a thing of the past.
•
Using typewriters for daily office work is a thing of the past.
something that no longer exists or happens