Avoid bringing up old conflicts; it's better to leave certain things unmentioned.
Trusted by1.5M+English learners & teachers worldwide
To avoid bringing up a past problem that has already settled down.
When you let sleeping dogs lie, you choose not to revisit something that could easily restart a conflict.
It's used when bringing up an old issue would only make things worse with no real benefit.
"Bury the Hatchet"
—
To formally end a conflict and make peace with someone
"Sweep It Under the Rug"
—
To hide a problem instead of addressing it properly
"Let Sleeping Dogs Lie"
—
Deliberately not bringing up a settled issue to avoid making things worse