Find Synonyms
unfaithful Synonyms
Another word for unfaithful
Choosing another word for unfaithful depends on context, so the 20 synonyms and similar words below are separated across 3 exact definitions and ranked by match strength.
• adjective (Context 1)
Engaging in romantic or sexual relations with someone other than one's spouse or committed partner; guilty of infidelity.
Usage Example
"She decided to end the marriage after discovering that her husband had been infidelitous."
Strongest
infidelitous
adulterous
untrue
Strong
cheating
two-timing
fickle
inconstant
• adjective (Context 2)
Not loyal or steadfast to a person, cause, promise, or duty; untrustworthy.
Usage Example
"The king was ultimately betrayed by disloyal advisors who valued their own ambition over the realm."
Strongest
disloyal
faithless
perfidious
Strong
treacherous
traitorous
false
untrustworthy
duplicitous
• adjective (Context 3)
Not accurate, exact, or true to an original source, text, or fact.
Usage Example
"Critics complained that the film adaptation was inaccurate to the spirit of the classic novel."
Strongest
inaccurate
inexact
Strong
unreliable
distorted
erroneous
Opposites of unfaithful
The opposite of unfaithful shifts depending on context. Common opposites include:
faithful
accurate
loyal
devoted
steadfast
exact
trustworthy
precise
• Nearby Words
Cite this Entry
Wordmom. (2026). Synonyms for Unfaithful. In Wordmom Thesaurus. Retrieved Nov 2, 2026, from https://wordmom.com/synonyms/unfaithful