CUMBERLAND MOUNTAINS(noun)Did you mean?Synonyms RhymesDefinitions There is 1 meaning of the phrase Cumberland Mountains. Cumberland Mountains - as a noun The southwestern part of the appalachians Synonyms (Exact Relations)cumberland plateauWord Variations & RelationsStarts CStarts CUStarts CUMStarts CUMBEnds SEnds NSEnds INSEnds AINSStarts C & ends SStarts CU & ends SStarts C & ends NSA-Z Proximitiescumbered15cumberer14cumberers15cumbering16cumberland Cumberland Mountains cumberless16cumberment18cumberments19cumbers13cumbersome18