impertinent vs unneighbourly

impertinent

adj

  • insolent, ill-mannered. 

  • irrelevant, useless. 

noun

  • An impertinent individual. 

unneighbourly

adj

  • Not neighbourly; antisocial. 

adv

  • In a way that is not neighbourly. 

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