RichThesaurus
iron-hearted
vs
unneighbourly
iron-hearted
adj
pitiless; inflexibly unsympathetic
unneighbourly
adj
Not neighbourly; antisocial.
adv
In a way that is not neighbourly.
How often have the words
iron-hearted
and
unneighbourly
occurred in a corpus of books?
(source:
Google Ngram Viewer
)