Find Synonyms

infidelity Synonyms

Another word for infidelity

Choosing another word for infidelity depends on context, so the 14 synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• noun (Context 1)

The action or state of being unfaithful to a spouse or other romantic partner.

Usage Example

"Their twenty-year marriage ultimately ended in divorce due to persistent unfaithfulness."

Strongest
unfaithfulness
adultery
disloyalty
cheating
Strong
betrayal
inconstancy
perfidy
falsehood

• noun (Context 2)

Disbelief in or rejection of a particular religion, especially Christianity or Islam (archaic or formal).

Usage Example

"Eighteenth-century theologians frequently published tracts defending orthodox doctrine against what they termed philosophical unbelief."

Strongest
unbelief
disbelief
Strong
apostasy
heresy
impiety
skepticism

Opposites of infidelity

The opposite of infidelity shifts depending on context. Common opposites include:

fidelity
faithfulness
loyalty
faith
piety
constancy
devotion
orthodoxy
See all opposites of infidelity

• Nearby Words

infest
infestation
infidel
infidelity
infield
infighting
infill

Cite this Entry

Wordmom. (2026). Synonyms for Infidelity. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/infidelity
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