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Definition of unfaithfulness

unfaithfulness

/ˌʌnˈfeɪθ.fəl.nəs/
un · faith · ful · ness
Adverb:unfaithfully
•
Adjective:unfaithful
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unfaithfulness Lexical Profile

unfaithfulness Game Scores & Validity

• noun

1

The state or act of engaging in sexual or romantic relations with someone other than one's spouse or committed partner; infidelity.

Example

"Their twenty-year marriage ultimately ended due to his repeated unfaithfulness."

2

A breach of trust, duty, allegiance, or commitment to a person, cause, or principle; disloyalty.

Example

"The prophet warned that the nation's unfaithfulness to its sacred covenant would bring severe consequences."

3

A lack of accuracy or close adherence to an original text, fact, or standard.

Example

"Critics faulted the cinematic adaptation for its unfaithfulness to the historical record."

Synonyms
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Antonyms
View all antonyms for unfaithfulness

• Rhymes for unfaithfulness

• Nearby Words

unfairness
unfaithful
unfaithfully
unfaithfulness
unfaked
unfaltering
unfalteringly

Cite this Entry

Wordmom. (2026). Definition of Unfaithfulness. In Wordmom Dictionary. Retrieved Nov 2, 2026, from https://wordmom.com/dictionary/unfaithfulness
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