Definitions

unfaithful

[uhn-feyth-fuhl] / ʌnˈfeɪθ fəl /

ADJECTIVE

disloyal, adulterous

Synonyms

STRONGEST

cheating untrue

WEAK

adulterine deceitful double-crossing faithless false false-hearted fickle foresworn inconstant incontinent moonlighting not true to of bad faith perfidious philandering recreant shifty snaky sneaking traitorous treacherous treasonable two-faced two-timing unchaste unreliable untrustworthy wicked

Antonyms

WEAK

faithful loyal trustworthy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He denied ever witnessing Epstein in the company of a minor and said he was never unfaithful to his wife.

From The Wall Street Journal

Once the Games began, they were humiliated again by another kind of cheating scandal involving an unfaithful biathlete.

From The Wall Street Journal

Then there’s the Norwegian biathlete who admitted to being unfaithful in a very public bid for forgiveness.

From The Wall Street Journal

"And three months ago, I made the biggest mistake of my life and I was unfaithful," he continued.

From Barron's

It’s not that she’s unfaithful to the material.

From Los Angeles Times