insensible vs out on one's feet

insensible

adj
  • Incapable or deprived of physical sensation. 

  • Unable to be perceived by the senses. 

  • Incapable of mental feeling; indifferent. 

  • Not sensible or reasonable; meaningless. 

  • Incapable of emotional feeling; callous; apathetic. 

  • Unable to be understood; unintelligible. 

out on one's feet

adj
  • Standing erect but not consciously aware of one's surroundings, or only minimally aware, and having little or no ability to control one's bodily actions, as a result of physical injury or exhaustion. 

  • Stupefied; dazed; nonfunctional. 

How often have the words insensible and out on one's feet occurred in a corpus of books? (source: Google Ngram Viewer )