fettered vs irresponsible

fettered

adj
  • Of the feet: bent backward and apparently unfit for walking. 

  • Bound by chains or shackles. 

  • Restricted. 

irresponsible

noun
  • Someone who is not responsible. 

adj
  • Lacking a sense of responsibility; performed or acting as though without responsibility; negligent. 

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