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
In the documentary, Stewart suggested that the infidelity reports were true.
—
Martha Ross, The Mercury News, 8 Nov. 2024
All of a sudden, the conversation is no longer about newfound infidelity rumors but about how Mia waited three years to play that card.
—Shamira Ibrahim, Vulture, 4 Nov. 2024
The court cases, danger to democracy, lies, infidelities etc have become white noise.
—Monica Sager, Newsweek, 1 Nov. 2024
Even people who study it disagree on its parameters—and infidelity has been studied a lot.
—Christina Pérez, Vogue, 22 Sep. 2024
See all Example Sentences for infidelity 
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Martha Ross, The Mercury News, 8 Nov. 2024
All of a sudden, the conversation is no longer about newfound infidelity rumors but about how Mia waited three years to play that card.
—Shamira Ibrahim, Vulture, 4 Nov. 2024
The court cases, danger to democracy, lies, infidelities etc have become white noise.
—Monica Sager, Newsweek, 1 Nov. 2024
Even people who study it disagree on its parameters—and infidelity has been studied a lot.
—Christina Pérez, Vogue, 22 Sep. 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 22 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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