Synonyms of 'break faith with someone'
▷ See faith
Copyright © 2016 by HarperCollins Publishers. All rights reserved.
He might be seen as having betrayed his mother.
grass (British , slang)
If you say that one person grasses on another, the first person tells the police or other authorities about something criminal or wrong which the second person has done.
He was repeatedly attacked by other inmates, who accused him of grassing.
I'd never grass on a mate.
Thesaurus for break faith with someone from the Collins English Thesaurus