lifeless vs tedious

lifeless

adj
  • dull or lacking vitality 

  • inanimate; having no life 

  • dead; having lost life 

  • uninhabited, or incapable of supporting life 

tedious

adj
  • Boring, monotonous, time-consuming, wearisome. 

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