back burner

from WordNet (r) 3.0 (2006)

back burner
    n 1: reduced priority; "dozens of cases were put on the back
         burner" [ant: {front burner}]

from Moby Thesaurus II by Grady Ward, 1.0

22 Moby Thesaurus words for "back burner":
      dinky, dispensable, immaterial, inappreciable, inconsequential,
      inconsiderable, inessential, inferior, insignificant, irrelevant,
      little, minor, minute, negligible, nonessential, not vital, petit,
      small, technical, unessential, unimpressive, unnoteworthy