UNFAITHFUL: Synonyms and Related Words. What is Another Word for UNFAITHFUL?

Need another word that means the same as “unfaithful”? Find 21 synonyms and 30 related words for “unfaithful” in this overview.

The synonyms of “Unfaithful” are: faithless, traitorous, treasonable, treasonous, adulterous, fickle, untrue, inconstant, flighty, disloyal, treacherous, untrustworthy, unreliable, undependable, false, perfidious, insincere, two-faced, janus-faced, double-dealing, deceitful

Unfaithful as an Adjective

Definitions of "Unfaithful" as an adjective

According to the Oxford Dictionary of English, “unfaithful” as an adjective can have the following definitions:

• Not faithful.
• Engaging in sexual relations with a person other than one's regular partner in contravention of a previous promise or understanding.
• Disloyal, treacherous, or insincere.
• Not true to duty or obligation or promises.
• Having the character of, or characteristic of, a traitor.
• Having sexual relations with someone other than your husband or wife, or your boyfriend or girlfriend.
• Not trustworthy.

Synonyms of "Unfaithful" as an adjective (21 Words)

adulterous	Of or involving adultery. An adulterous affair.
deceitful	Intended to deceive. She was a deceitful scheming little thing.
disloyal	Failing to be loyal to a person, country, or organization to which one has obligations. She was accused of being disloyal to the government.
double-dealing	Marked by deliberate deceptiveness especially by pretending one set of feelings and acting under the influence of another- Israel Zangwill.
faithless	Disloyal, especially to a spouse or partner. The faithless Benedict Arnold.
false	Used in names of plants animals and gems that superficially resemble the thing properly so called e g false oat. The trunk had a false bottom.
fickle	Changing frequently, especially as regards one’s loyalties or affections. Fickle weather.
flighty	Guided by whim and fancy. Her mother was a flighty Southern belle.
inconstant	Likely to change frequently often without apparent or cogent reason; variable. The most inconstant man in the world.
insincere	Not expressing genuine feelings. She flashed him an insincere smile.
janus-faced	Having or concerned with polarities or contrasts.
perfidious	Deceitful and untrustworthy. A perfidious lover.
traitorous	Relating to or characteristic of a traitor; treacherous. A lying traitorous insurrectionist.
treacherous	Tending to betray especially having a treacherous character as attributed to the Carthaginians by the Romans. Treacherous winding roads.
treasonable	(of an offence or offender) punishable as treason or as committing treason. There was no evidence of treasonable activity.
treasonous	Involving or guilty of the betrayal of someone or something. It seems almost treasonous to criticize the film.
two-faced	Marked by deliberate deceptiveness especially by pretending one set of feelings and acting under the influence of another- Israel Zangwill.
undependable	Liable to be erroneous or misleading. An undependable assistant.
unreliable	Not worthy of reliance or trust. An unreliable trestle.
untrue	Not true to an obligation or trust-Bruno Laske. Off level floors and untrue doors and windows.
untrustworthy	Not worthy of trust or belief. Thomas considered her to be devious and untrustworthy.

Usage Examples of "Unfaithful" as an adjective

• An unfaithful reproduction.
• She felt that to sell the house would be unfaithful to her parents' memory.
• An unfaithful lover.
• You haven't been unfaithful to him, have you?
• Her unfaithful husband.
• Her husband was unfaithful.

Associations of "Unfaithful" (30 Words)

apostate	A disloyal person who betrays or deserts his cause or religion or political party or friend etc. An apostate Roman Catholic.
betray	Be sexually unfaithful to one’s partner in marriage. The spy betrayed his country.
betrayal	An act of deliberate betrayal. The betrayal by the king by his daughter.
cheat	An act of cheating a fraud or deception. She cheats on her husband.
cheating	Not faithful to a spouse or lover.
deceit	The action or practice of deceiving someone by concealing or misrepresenting the truth. Hypocrisy and deceit were anathema to her.
deceive	(of a thing) give (someone) a mistaken impression. He had deceived her with another woman.
dishonesty	The quality of being dishonest. The dismissal of thirty civil servants for dishonesty and misconduct.
disloyal	(of a remark or thought) demonstrating a lack of loyalty. She was accused of being disloyal to the government.
faithless	Having the character of, or characteristic of, a traitor. Her faithless lover.
fickle	Marked by erratic changeableness in affections or attachments. Celebs trying to appeal to an increasingly fickle public.
inconstant	Likely to change frequently often without apparent or cogent reason; variable. Inconstant affections.
infidelity	Disbelief in a particular religion, especially Christianity. Her infidelity continued after her marriage.
insurgent	A person who takes part in an armed rebellion against the constituted authority (especially in the hope of improving conditions. Alleged links with insurgent groups.
mutinous	Wilful or disobedient. Antoinette looked mutinous but she obeyed.
perfidious	Tending to betray; especially having a treacherous character as attributed to the Carthaginians by the Romans. The perfidious Judas.
rebel	A person who takes part in an armed rebellion against the constituted authority especially in the hope of improving conditions. Respect did not prevent children from rebelling against their parents.
rebellious	Discontented as toward authority. Temperamentally rebellious.
renegade	Become a renegade. A renegade monk.
traitor	A person who says one thing and does another. He was a traitor to his own class.
traitorous	Having the character of, or characteristic of, a traitor. When his traitorous actions were discovered he was imprisoned.
treacherous	Tending to betray especially having a treacherous character as attributed to the Carthaginians by the Romans. Treacherous winding roads.
treasonable	(of an offence or offender) punishable as treason or as committing treason. There was no evidence of treasonable activity.
trick	A period of work or duty. She thought Elaine was playing some trick on her.
turncoat	A disloyal person who betrays or deserts his cause or religion or political party or friend etc. They denounced him as a turncoat.
unbelief	Lack of religious belief; an absence of faith. The darkness of unbelief.
unreliable	Not able to be relied upon. An unreliable trestle.
untrue	(used especially of persons) not dependable in devotion or affection; unfaithful. Unfortunately the statement was simply untrue.
untrustworthy	Not able to be relied on as honest or truthful. An untrustworthy person.
volatile	A volatile substance. Volatile solvents.