Having low urgency; not currently important.(adjective)
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Use "back-burner" in a sentence
"Most scientists are relegating it to the back-burner until some method of testing becomes available. chunkdz: Yes, a hypothesis that is not readily falsifiable is not scientific."
"Said the preternaturally youthful looking Meyer about raising kids: “A lot of who I was and my crazy imagination … that person was on the back-burner.”"
"There's some revising to do, but that can happen on the back-burner as focus shifts back to The Wheel of Time."