unawares vs unneighbourly

unawares

adv

  • Without plan or forethought. 

  • Unexpectedly or by surprise. 

  • Inadvertently. 

unneighbourly

adv

  • In a way that is not neighbourly. 

adj

  • Not neighbourly; antisocial. 

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