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I was just wondering if there a single English word or term that means "trust breaker" (that is, a person who breaks a trust).

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  • Seems a "trust breaker" or "deal breaker" is a term for something someone does that changes the relationship. Hence the single word for such a concept would depend on the relationship. Infidelity could be a trust breaker in a personal relationship, but the overall term would still be trust breaker
    – mplungjan
    Commented Aug 12, 2013 at 12:38
  • But "trust breaker" could also be someone who breaks a trust. The question is ambiguous.
    – Andrew Leach
    Commented Aug 12, 2013 at 13:19
  • @AndrewLeach what I meant was, as you mentioned, someone who breaks trust in personal relationships.
    – Aram
    Commented Aug 12, 2013 at 13:30
  • @user49582 Fixed that for you.
    – Andrew Leach
    Commented Aug 12, 2013 at 13:32
  • 1
    Yes, but infidelity is a form of trust breaking. Not a word for trust breaking in general
    – mplungjan
    Commented Aug 12, 2013 at 13:36

3 Answers 3

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The words "turncoat" and "deceiver" can be used to mean "trust breaker," but both have a connotation of betrayal.

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Traitor and Betrayer are the two words I can think of other than the ones mentioned in the above answer.

1

The strongest single term I can think of is "perfidious", relating of or to "perfidy" - the deliberate breach of trust, or betrayal.

Other words would include "oathbreaker" (arguably a compound word, "oath-breaker"), or traitor.

1
  • Welcome to ELU. Your answer would benefit from citing a source and perhaps an example sentence.
    – livresque
    Commented Sep 3, 2020 at 2:03

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