unneighbourly vs unsympathizing

unneighbourly

adj

  • Not neighbourly; antisocial. 

adv

  • In a way that is not neighbourly. 

unsympathizing

adj

  • Failing to sympathize; lacking sympathy 

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