The phrase "a lost tradition" is correct and usable in written English.
It can be used to refer to a cultural practice or custom that has been forgotten or is no longer practiced.
Example: "The festival was once a vibrant celebration, but now it has become a lost tradition, remembered only by a few elders in the community."
Alternatives: "an abandoned custom" or "a forgotten practice".
It was also an attempt to revive a lost tradition in American politics.
What I had considered an innovation thus turned out to be a lost tradition in English sculpture…" The postwar years in St Ives saw Hepworth return to carving.
The location of this vast new enterprise is not simply a question of reviving a lost tradition, but of common-sense logistics.
As Jacques Barzun, the great American philosopher of education once said, "Teaching is not a lost art, but the regard for it is a lost tradition".
"Teaching is not a lost art," the historian Jacques Barzun once observed, "but the regard for it is a lost tradition".
The broader truth is that gardening is a lost tradition in many African-American communities.
"We had to overcome a losing tradition, the sense that everybody expected you to lose every week.
A losing tradition has been the backdrop to the team's sales of personal seat licenses at the Jets' and Giants' new stadium.
He recognizes that the Jets are a long-beleaguered franchise with a losing tradition, and that saying they are a great team with a noble past — "play like a Jet" ought to be a laugh line, but he made it something else — is sound psychology, as Jeeves would say.
Now, a movement to restore lost tradition has motivated a new generation of Jewish volunteers to learn a set of skills that was common knowledge for many of their great-grandparents: the rituals of bathing, dressing and watching over the bodies of neighbors and friends who have died.
As a result, the sharp ideological swings that characterised British politics for most of the 20th century now seem part of an ancient and (happily) lost tradition.
