infidelity
noun
in·fi·del·i·ty
ˌin-fə-ˈde-lə-tē 
-(ˌ)fī-
plural infidelities
1
a
: the act or fact of having a romantic or sexual relationship with someone other than one's husband, wife, or partner
b
: unfaithfulness to a moral obligation : disloyalty
2
: lack of belief in a religion
Synonyms
Examples of infidelity in a Sentence
She was convinced that her husband was guilty of infidelity.
He has admitted to a number of marital infidelities.
Recent Examples on the Web
The infidelity story has been extremely well told before.
—
Michael Ausiello, TVLine, 31 Oct. 2024
What was supposed to be a happy time, however, was marred with Baskett's infidelity scandal — which played out in front of cameras.
—Nina Turner, Newsweek, 29 Oct. 2024
In June, Nodal shared a video addressing infidelity rumors between him and his former partner, Argentine musician Cazzu.
—Tomás Mier, Rolling Stone, 17 Oct. 2024
Researchers suggest that a narcissist’s attachment style can fuel their infidelity—specifically, preoccupied, fearful and dismissive attachment styles.
—Mark Travers, Forbes, 16 Oct. 2024
See all Example Sentences for infidelity 
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Michael Ausiello, TVLine, 31 Oct. 2024
What was supposed to be a happy time, however, was marred with Baskett's infidelity scandal — which played out in front of cameras.
—Nina Turner, Newsweek, 29 Oct. 2024
In June, Nodal shared a video addressing infidelity rumors between him and his former partner, Argentine musician Cazzu.
—Tomás Mier, Rolling Stone, 17 Oct. 2024
Researchers suggest that a narcissist’s attachment style can fuel their infidelity—specifically, preoccupied, fearful and dismissive attachment styles.
—Mark Travers, Forbes, 16 Oct. 2024
See all Example Sentences for infidelity
Articles Related to infidelity
Dictionary Entries Near infidelity
Cite this Entry
“Infidelity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/infidelity. Accessed 28 Nov. 2024.
Copy CitationKids Definition
infidelity
noun
in·fi·del·i·ty
ˌin-fə-ˈdel-ət-ē
-(ˌ)fī-
plural infidelities
1
: lack of faith in a religion
2
: unfaithfulness especially to one's husband or wife
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