If you say that someone is untrustworthy, you think they are unreliable and cannot be trusted.
I think he is shallow, vain and untrustworthy.
His opponents still say he's a fundamentally untrustworthy figure.
Synonyms: unreliable, treacherous, deceitful, false More Synonyms of untrustworthy
untrustworthy in British English
(ʌnˈtrʌstˌwɜːðɪ)
adjective
not worthy of being trusted
untrustworthy witnesses
Examples of 'untrustworthy' in a sentence
untrustworthy
There is a widespread suspicion that a deeply untrustworthy establishment is preparing to sell them out.
The Sun (2016)
People in a rush are thought to be arrogant and untrustworthy.
A Conceptual View of Human Resource Management: Strategic Objectives, Environments,Functions
Holding a hand in front of the mouth makes a politician look untrustworthy.
Times, Sunday Times (2008)
Yet this is a deeply flawed and untrustworthy play, for one simple reason.
Times, Sunday Times (2009)
Instead, it looks devious and untrustworthy.
The Sun (2011)
These two details are enough to make you an untrustworthy character, according to Barclays.
Times, Sunday Times (2009)
They are transformed into a conviction of being quite generally unreliable, untrustworthy, and insatiable.
Bloom, Carol & Gitter, Andrea (contributor) & Gutwill, Susan (contributor) & Kogel,Laura (contributor) & Zaphiropoulos, Lela (contributor) Eating Problems: A Feminist Psychoanalytic Treatment Model (1994)
(adjective)
Definition
unreliable and not able to be trusted
His opponents still say he's a fundamentally untrustworthy figure.
Synonyms
unreliable
She had proved to be an unreliable witness and had lied to police.
treacherous
The President spoke of the treacherous intentions of the enemy.
deceitful
The ambassador called the report deceitful and misleading.
false
She was a false friend, envious of her lifestyle and her success.
tricky
They could encounter some tricky political manoeuvring.
slippery
a slippery customer
untrue
untrue to the basic tenets of socialism
dishonest
He had become rich by dishonest means.
fickle
They are fickle, faithless and lewd.
devious
She tracked down the other woman by devious means.
unfaithful
They denounced him as unfaithful to the traditions of the Society.
capricious
two-faced
He had been devious and two-faced.
disloyal
He proved to be an untrustworthy and disloyal ally.
faithless
She decided to divorce her increasingly faithless and unreliable husband.
fair-weather
fly-by-night (informal)
fly-by-night operators who do shoddy work
undependable
not to be depended on
untrusty
Opposites
reliable
,
loyal
,
faithful
,
true
,
honest
,
reputable
,
dependable
,
trustworthy
,
trusty
,
steadfast
Additional synonyms
in the sense of deceitful
Definition
full of deceit
The ambassador called the report deceitful and misleading.
Synonyms
dishonest,
false,
deceiving,
fraudulent,
treacherous,
deceptive,
hypocritical,
counterfeit,
crafty,
sneaky,
illusory,
two-faced,
disingenuous,
untrustworthy,
underhand,
insincere,
double-dealing,
duplicitous,
fallacious,
guileful,
knavish (archaic)
in the sense of devious
Definition
insincere and dishonest
She tracked down the other woman by devious means.
Synonyms
sly,
scheming,
calculating,
tricky,
crooked (informal),
indirect,
treacherous,
dishonest,
wily,
insidious,
evasive,
deceitful,
underhand,
insincere,
surreptitious,
double-dealing,
not straightforward
in the sense of dishonest
Definition
not honest or fair
He had become rich by dishonest means.
Synonyms
deceitful,
corrupt,
crooked (informal),
designing,
lying,
bent (slang),
false,
unfair,
cheating,
deceiving,
shady (informal),
fraudulent,
treacherous,
deceptive,
unscrupulous,
crafty,
swindling,
disreputable,
untrustworthy,
double-dealing,
unprincipled,
mendacious,
perfidious (literary),
untruthful,
guileful,
knavish (archaic)
Nearby words of
untrustworthy
untried
untroubled
untrue
untrustworthy
untruth
untruthful
untutored
Synonyms of 'untrustworthy'
untrustworthy
Explore 'untrustworthy' in the dictionary
Additional synonyms
in the sense of disloyal
Definition
not loyal
He proved to be an untrustworthy and disloyal ally.
Synonyms
treacherous,
false,
unfaithful,
subversive,
two-faced,
faithless,
untrustworthy,
perfidious (literary),
apostate,
traitorous
in the sense of faithless
Definition
treacherous or disloyal
She decided to divorce her increasingly faithless and unreliable husband.
Synonyms
disloyal,
unreliable,
unfaithful,
untrustworthy,
doubting,
false,
untrue,
treacherous,
dishonest,
fickle,
perfidious (literary),
untruthful,
traitorous,
unbelieving,
inconstant,
false-hearted,
recreant (archaic)
in the sense of false
She was a false friend, envious of her lifestyle and her success.
Synonyms
treacherous,
lying,
deceiving,
unreliable,
two-timing (informal),
dishonest,
deceptive,
hypocritical,
unfaithful,
two-faced,
disloyal,
unsound,
deceitful,
faithless,
untrustworthy,
insincere,
double-dealing,
dishonourable,
duplicitous,
mendacious,
perfidious (literary),
treasonable,
traitorous,
inconstant,
delusive,
false-hearted
in the sense of fickle
Definition
changeable in purpose, affections, etc.
They are fickle, faithless and lewd.
Synonyms
capricious,
variable,
volatile,
unpredictable,
unstable,
unfaithful,
temperamental,
mercurial,
unsteady,
faithless,
changeable,
quicksilver,
vacillating,
fitful,
flighty,
blowing hot and cold,
mutable,
irresolute,
inconstant
in the sense of fly-by-night
Definition
unreliable or untrustworthy, esp. in money matters
fly-by-night operators who do shoddy work
Synonyms
unreliable,
cowboy (informal),
dubious,
questionable,
shady (informal),
untrustworthy,
undependable
in the sense of slippery
Definition
not to be trusted
a slippery customer
Synonyms
untrustworthy,
tricky,
cunning,
false,
treacherous,
dishonest,
devious,
crafty,
evasive,
sneaky,
two-faced,
shifty (informal),
foxy,
duplicitous
in the sense of treacherous
Definition
disloyal and untrustworthy
The President spoke of the treacherous intentions of the enemy.
Synonyms
disloyal,
deceitful,
untrustworthy,
duplicitous,
false,
untrue,
unreliable,
unfaithful,
faithless,
double-crossing (informal),
double-dealing,
perfidious (literary),
traitorous,
treasonable,
recreant (archaic)
in the sense of tricky
Definition
sly or wily
They could encounter some tricky political manoeuvring.
Synonyms
crafty,
scheming,
subtle,
cunning,
slippery,
sly,
deceptive,
devious,
wily,
artful,
foxy,
deceitful
in the sense of two-faced
Definition
deceitful or hypocritical
He had been devious and two-faced.
Synonyms
hypocritical,
false,
deceiving,
treacherous,
deceitful,
untrustworthy,
insincere,
double-dealing,
duplicitous,
dissembling,
perfidious (literary),
Janus-faced
in the sense of undependable
Synonyms
unreliable,
variable,
uncertain,
unpredictable,
unstable,
irresponsible,
inconsistent,
erratic,
treacherous,
fickle,
capricious,
changeable,
untrustworthy,
inconstant
Additional synonyms
in the sense of unfaithful
Definition
not true to a promise or vow
They denounced him as unfaithful to the traditions of the Society.