cumbrous vs lumbering

cumbrous

adj
  • Unwieldy because of size or weight; cumbersome. 

lumbering

adj
  • Heavy, slow and laborious; ponderous. 

  • Clumsy or awkward. 

noun
  • The business of felling trees for lumber. 

  • The act of one who lumbers; heavy, clumsy movement. 

How often have the words cumbrous and lumbering occurred in a corpus of books? (source: Google Ngram Viewer )