unapproachable vs unneighbourly

unapproachable

adj

  • Aloof and unfriendly. 

  • Not accessible or able to be reached. 

  • Without any serious competition; unbeatable. 

unneighbourly

adj

  • Not neighbourly; antisocial. 

adv

  • In a way that is not neighbourly. 

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