Synonyms of 'down the drain'
▷ See drain
Copyright © 2016 by HarperCollins Publishers. All rights reserved.
You use lost to refer to a period or state of affairs that existed in the past and no longer exists.
the relics of a lost civilization
Thesaurus for down the drain from the Collins English Thesaurus
If you say that something is going down the drain , you mean that it is being destroyed or wasted.