long since

1. 1.

   of the distant or comparatively distant past

   “We met once long ago”

   “they long ago forsook their nomadic life”

   “left for work long ago”

   “he has long since given up mountain climbing”

   “This name has long since been forgotten”

   “lang syne”

   Synonymslong agolang syne

Questions about long since

What does long since mean?

long since means "of the distant or comparatively distant past".

What is another word for long since?

Close synonyms include long ago, lang syne. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is long since a common word?

long since is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.