Words That Rhyme With "Slumbering" :
3 syllables:
buffering, buttering, coloring, colouring, covering, guttering, hovering, hungering, lumbering, mongering, mothering, muttering, numbering, puttering, shuddering, shuttering, smothering, sputtering, stuttering, suffering, thundering, underling, underwing, ushering, uttering, wondering
4 syllables:
discovering, dismembering, outnumbering, recovering, remembering, uncovering