disconnected vs nonconcordant

disconnected

adj
  • Incoherent; disjointed. 

  • That can be partitioned into two nonempty subsets which are both open and closed. 

  • Feeling a lack of empathy or association with something. 

  • That is no longer connected. 

nonconcordant

adj
  • Discordant; inharmonious; disconsonant; not in keeping with; not agreeable with; disagreeing. 

  • not preserving the sign; of opposite sign or zero 

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