Recreancy is a term that refers to disloyalty, cowardice, or faithlessness. Synonyms for this word may include treachery, betrayal, infidelity, perfidy, duplicity, and deceit. These words all share the notion of someone or something not living up to the expectations of trust or loyalty. Other synonyms could be disloyalty, desertion, or abandonment, all conveying the same sense of a failure to uphold commitments and obligations. One might also use the term faithlessness or unfaithfulness to describe someone who is not dedicated, honest or sincere in their obligations. Overall, synonyms of recreancy reflect the negative connotation of not fulfilling a promise or obligation.