Sentence:  ... there was no neighbourliness, worth the word, between what the postmistress called ‘our old people' and ‘that new set'. Polite calls paid by the former on the latter were as politely returned; but at that it ended. The gulf of mutual <WSD>disinterest</WSD> was unbridged. 
Meaning of the word marked with <WSD> tags:  A lack of interest. (from 19th c.)