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Definition of unfaithfully

unfaithfully

/ʌnˈfeɪθ.fəl.i/
un · faith · ful · ly
Adjective:unfaithful
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unfaithfully Lexical Profile

unfaithfully Game Scores & Validity

• adverb

1

In a disloyal, treacherous, or untrustworthy manner, especially by violating a vow, duty, or romantic commitment.

Example

"He behaved unfaithfully toward his business partners by secretly sharing their proprietary designs with a rival firm."

2

In a way that fails to accurately or closely reproduce an original text, performance, or set of facts.

Example

"The historical novel was unfaithfully adapted for the screen, omitting several central characters and altering the ending."

Synonyms
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Antonyms
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• Rhymes for unfaithfully

• Nearby Words

unfairly
unfairness
unfaithful
unfaithfully
unfaithfulness
unfaked
unfaltering

Word Origin & Etymology

Formed in Middle English from the adjective 'unfaithful' plus the adverbial suffix '-ly', with the root 'faith' deriving from Old French 'feid' and Latin 'fides' (trust, belief).

Cite this Entry

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