Synonyms of faithless

faithless

adjective

ˈfāth-ləs 

as in traitorous

not true in one's allegiance to someone or something

faithless friends who deserted him in his time of need

Synonyms & Similar Words

• traitorous
• unreliable
• false
• unfaithful
• treacherous
• disloyal
• perfidious
• fickle
• inconstant
• untrue
• recreant
• irresponsible
• untrustworthy
• hesitant
• undependable
• uncertain
• irresolute
• faltering
• apathetic
• uninterested
• dubious
• trustless
• wavering
• dispassionate
• vacillating

Antonyms & Near Antonyms

• faithful
• loyal
• devout
• true
• constant
• steadfast
• steady
• responsible
• staunch
• reliable
• dutiful
• fast
• devoted
• trustworthy
• dedicated
• dependable
• solid
• trusty
• stanch
• down-the-line
• tried
• resolute
• unhesitating
• unfaltering
• determined
• inveterate
• intent
• tried-and-true
• confirmed
• enthusiastic
• ardent
• passionate
• trustable
• fervent
• unwavering
• impassioned
• sworn
• avid
• fervid
• dyed-in-the-wool

Synonym Chooser

How is the word faithless different from other adjectives like it?

Some common synonyms of faithless are disloyal, false, perfidious, traitorous, and treacherous. While all these words mean "untrue to what should command one's fidelity or allegiance," faithless applies to any failure to keep a promise or pledge or any breach of allegiance or loyalty.

faithless allies

When can disloyal be used instead of faithless?

The synonyms disloyal and faithless are sometimes interchangeable, but disloyal implies a lack of complete faithfulness to a friend, cause, leader, or country.

disloyal to their country

When could false be used to replace faithless?

In some situations, the words false and faithless are roughly equivalent. However, false stresses the fact of failing to be true in any manner ranging from fickleness to cold treachery.

betrayed by false friends

How do perfidious and faithless relate to one another?

Perfidious adds to faithless the implication of an incapacity for fidelity or reliability.

a perfidious double-crosser

When is traitorous a more appropriate choice than faithless?

While the synonyms traitorous and faithless are close in meaning, traitorous implies either actual treason or a serious betrayal of trust.

traitorous acts punishable by death

When might treacherous be a better fit than faithless?

The meanings of treacherous and faithless largely overlap; however, treacherous implies readiness to betray trust or confidence.

a treacherous adviser

Examples Sentences

Recent Examples of faithless

In Her Car follows Lydia, a psychologist with anxiety issues on her way to Kharkiv to divorce her faithless husband who spots a young woman at a bus station and decides to give a young woman a lift. —Scott Roxborough, The Hollywood Reporter, 23 Feb. 2024

She then can be redeemed only by killing the faithless Prince. —Scott Cantrell, Dallas News, 8 Aug. 2023

The company is suing the faithless investors and is being sued itself by other investors who claim they were misled. —WIRED, 28 Feb. 2023

And only around 160 faithless ballots have been cast in U.S. history. —Fortune, 30 Nov. 2020