1
as in infidelity
lack of faithfulness especially to one's husband or wife
a wife who long ago became resigned to the chronic faithlessness of her husband
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in betrayal
the act or fact of violating the trust or confidence of another
the former butler's mercenary faithlessness shocked and offended the royal family
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for faithlessness
Noun
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Following the news breaking, rumors of infidelity on both sides began circulating on social media.
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The Apartment is a daring dissection of toxicity in the story of an insurance clerk (Jack Lemmon) who lets his co-workers use his apartment to support their infidelity.
Noun
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The videos feature anthropomorphic fruits navigating absurdist romantic betrayals.
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But as the inmate and his fellow prisoners journey into the wilderness, the real threat isn’t the trek, but the betrayal and violence festering within their ranks.
Noun
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The filings alleged adultery as the reason behind the divorce.
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Public opinion is against adultery.
Noun
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This is not treachery but the truest and noblest affection.
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Peacock’s adventures in treachery The Traitors was the top dog, scoring five prizes including Best Competition Series and Best Host for Alan Cumming.
Noun
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Treating rumors as diagnostic signals of uncertainty or weak trust, rather than disloyalty, helps leaders improve communication and align words with observable actions.
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Easley also argued constructive criticism was too often viewed as disloyalty and that many employees felt safer remaining silent than challenging decisions.
Noun
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For example, French Marshal Henri Petain was showered with ticker tape in 1931 and later convicted of treason for heading the Vichy government that collaborated with the Nazis during World War II.
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War complicates the domestic front, turning any dissent into treason.
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Cite this Entry
“Faithlessness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/faithlessness. Accessed 30 Jun. 2026.
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