infidelity

American  

[in-fi-del-i-tee] / ˌɪn fɪˈdɛl ɪ ti /

noun

plural

infidelities

1. marital disloyalty; adultery.

2. unfaithfulness; disloyalty.

3. lack of religious faith, especially Christian faith.

4. a breach of trust or a disloyal act; transgression.

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infidelity British  

/ ˌɪnfɪˈdɛlɪtɪ /

noun

1. lack of faith or constancy, esp sexual faithfulness

2. lack of religious faith; disbelief

3. an act or instance of disloyalty

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Etymology

Origin of infidelity

First recorded in 1375–1425; late Middle English, from Latin infidēlitās; equivalent to infidel + -ity

Example Sentences

Also at the Olympics, the Norwegian athlete who confessed infidelity after winning a medal.

From MarketWatch

An attorney retained by Andrew’s family told ABC7 that moments before the killing, Andrew read a diary entry in which his wife described engaging in infidelity.

From Los Angeles Times

In it, she leveled several shocking accusations about Harbour’s alleged infidelity, with the townhouse playing a central role in the title track of the record.

From MarketWatch

He scrolled through paragraphs about rivalries, infidelity, and then...

From Literature

Stockpile evidence of infidelity as he accompanies Gwyn on a book tour in America?

From The Wall Street Journal

Related Words

• adultery
• affair
• betrayal
• duplicity
• treachery