lethargic vs yawning

lethargic

adj

  • indifferent, apathetic 

  • sluggish, slow 

yawning

adj

  • That yawns or yawn. 

  • Wide open. 

noun

  • The action of the verb yawn. 

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