What does "adulterer" mean?

One who commits adultery.; A spouse who has sex with a non-spouse.

What is a synonym for "adulterer"?

Common synonyms include: fornicator, adulteress, bed-hopper, carpetmonger, casanova, chamberer.

Pronounced //əˈdʌltəɹə//.

//əˈdʌltəɹə// noun

noun ·Uncommon ·Advanced level

Noun

1
One who commits adultery.; A spouse who has sex with a non-spouse. broadly
"Under the canon-law rule, a married participant is an adulterer and an umarried one is a fornicator."
2
someone who commits adultery or fornication wordnet
3
One who commits adultery.; Someone who cheats on their spouse or monogamous significant other. broadly
"Ashley Madison, so-called for the two most popular girls names, billed itself as the premier destination for adulterers – no judgment, no risks, no strings attached other than the payments required to secure enough “credits” to talk to other users."
4
One who commits adultery.; A male adulterer specifically. broadly
"I become an adulterer and remain an adulterer when, by choice, I freely adopt the proposal to have sex with someone other than my wife."

"Sami was a thief, an adulterer and a murderer."

From adulter (“to commit adultery”) + -er.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.