Synonyms of infidelity

infidelity

noun

ˌin-fə-ˈde-lə-tē 

1

as in adultery

lack of faithfulness especially to one's husband or wife

infidelity can lead to divorce

Synonyms & Similar Words

• adultery
• betrayal
• disloyalty
• faithlessness
• unfaithfulness
• perfidy
• treachery
• inconstancy
• falseness
• perfidiousness
• deception
• falsity
• lying
• deceit
• treason
• duplicity
• double-dealing
• sellout
• double cross

Antonyms & Near Antonyms

• fidelity
• loyalty
• faith
• devotion
• faithfulness
• allegiance
• constancy
• fealty
• reliability
• steadfastness
• devotedness
• dependability
• honesty
• trustworthiness
• staunchness

2

as in betrayal

the act or fact of violating the trust or confidence of another

the one thing that the political boss will not forgive is infidelity

Synonyms & Similar Words

• betrayal
• treachery
• treason
• unfaithfulness
• deception
• faithlessness
• disloyalty
• perfidy
• backstabbing
• abandonment
• falseness
• deceit
• lying
• double cross
• falsity
• two-timing
• sellout
• business
• desertion
• duplicity
• fraud
• double-dealing
• informing
• trickery
• guile
• two-facedness
• snitching
• talebearing

Antonyms & Near Antonyms

• fidelity
• loyalty
• faithfulness
• devotion
• allegiance
• steadfastness
• fealty
• reliability
• trustworthiness
• dependability
• defense
• protection
• staunchness
• shield
• safeguard

3

as in misconduct

a sexual encounter or relationship between a married person and someone other than their spouse

had known about his wife's infidelities for years

Synonyms & Similar Words

• adultery
• misconduct
• cheating
• unfaithfulness
• treachery
• affaire
• affair
• promiscuity
• two-timing
• romance
• faithlessness
• disloyalty
• perfidy
• love
• intrigue
• infatuation
• inconstancy
• criminal conversation
• falseness
• free love
• flirtation
• love affair
• amour
• perfidiousness
• entanglement
• fling
• attachment
• liaison
• passion

Antonyms & Near Antonyms

• fidelity
• faithfulness
• loyalty
• devotion
• dedication
• allegiance
• constancy
• steadfastness
• fealty
• devotedness

Examples of infidelity in a Sentence

Recent Examples on the Web

In a 2007 interview with the Guardian, the rocker, now 55, admitted that his infidelity led to his divorce from his first wife, Jennifer Youngblood, in 1997. —Alexandra Del Rosario, Los Angeles Times, 10 Sep. 2024

Beyoncé’s sixth album was heavily influenced by her personal life, and her emotional journey in the aftermath of her husband’s infidelity. —Okla Jones, Essence, 4 Sep. 2024

Now my children, a teen and preteen, have become aware of my husband’s infidelity. —Eric Thomas, Sun Sentinel, 1 Aug. 2024

Details of Hunter’s unruly behavior during those years were exposed during his previous firearm trial, which saw several people testify about his past substance abuse and infidelity. —Raven Brunner, Peoplemag, 5 Sep. 2024