FAITHFULNESS Synonyms: 40 Similar and Opposite Words - Merriam-Webster
https://www.merriam-webster.com/thesaurus/faithfulness
WEBSynonyms for FAITHFULNESS: loyalty, dedication, commitment, allegiance, devotion, fidelity, steadfastness, fealty; Antonyms of FAITHFULNESS: treachery, unfaithfulness, disloyalty, faithlessness, perfidy, infidelity, falsity, inconstancy.
DA: 52 PA: 23 MOZ Rank: 92