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Definitions

trustworthiness

[truhst-wur-thee-nis] / ˈtrʌstˌwɜr ði nɪs /
NOUN
authenticity
Synonyms
STRONGEST
accuracy correctness credibility legitimacy purity reliability truthfulness validity
STRONG
dependability factualness realness
WEAK
veritableness
Antonyms
STRONGEST
inaccuracy
NOUN
constancy
Synonyms
STRONGEST
dependability perseverance steadfastness steadiness truthfulness
STRONG
adherence allegiance ardor attachment certainty decision determination devotedness devotion doggedness eagerness earnestness endurance faith fealty fidelity firmness follow through honesty honor integrity love loyalty permanence principle regularity resolution stability staunchness surety tenacity trustiness unchangeableness uniformity zeal
WEAK
abidingness unfailingness
Antonyms
STRONG
apathy disgrace dishonesty dishonor disinterest dislike disloyalty doubt enmity hate hatred hesitation indecision indefiniteness indifference instability irresolution lying treachery uncertainty unsteadiness vacillation wavering weakness
WEAK
change changeableness fluctuation inconstancy irregularity
NOUN
credibility
Synonyms
STRONGEST
chance integrity prospect reliability soundness validity
STRONG
believability likelihood plausibility possibility probability satisfactoriness solidity solidness tenability
Antonyms
STRONG
unlikelihood
WEAK
implausibility improbability unreasonableness
NOUN
credibleness
Synonyms
STRONG
believability credibility plausibility plausibleness reliability reliableness validity validness verisimilitude
WEAK
creditability creditableness
NOUN
creditability
Synonyms
WEAK
believableness credibility credibleness creditableness plausibility plausibleness reliability reliableness validity validness verisimilitude
NOUN
creditableness
Synonyms
WEAK
believableness credibility credibleness creditability plausibility plausibleness reliability reliableness validity validness verisimilitude
NOUN
dependence/dependency
Synonyms
WEAK
assurance belief credence expectation faith hope interdependence responsibility responsibleness stability steadiness stock trust trustiness
Antonyms
WEAK
freedom independence strength subtraction want
NOUN
faithfulness
Synonyms
STRONGEST
adherence allegiance fealty fidelity
STRONG
adhesion ardor attachment care constancy dependability duty loyalty piety truth
Antonyms
STRONGEST
disloyalty treachery
STRONG
disregard inconstancy
WEAK
dishonesty falseness
NOUN
fidelity
Synonyms
STRONGEST
devotion loyalty
STRONG
allegiance ardor attachment constancy dependability devotedness faith fealty integrity piety reliability staunchness steadfastness
WEAK
true-heartedness
Antonyms
STRONG
enmity
WEAK
disloyalty faithlessness inconstancy infidelity lying nonconformity treachery unsteadiness vacillation wavering
NOUN
honesty
Synonyms
STRONGEST
candor confidence fairness faithfulness frankness honor integrity loyalty morality probity rectitude responsibility self-respect sincerity veracity virtue
STRONG
bluntness conscientiousness equity fidelity genuineness goodness impeccability incorruptibility justness openness outspokenness plainness principle reputability right scrupulousness soundness straightforwardness straightness trustiness uprightness
WEAK
evenhandedness
Antonyms
STRONGEST
corruption disgrace dishonesty dishonor disloyalty distrust evil falsehood immorality unfairness
STRONG
unjustness
WEAK
artifice cheating deceit deception duplicity fraud fraudulence lying treachery
NOUN
honor
Synonyms
STRONGEST
courage decency fairness honesty morality virtue
STRONG
character chastity goodness honestness incorruption incorruptness innocence modesty morals principles probity purity rectitude righteousness truthfulness uprightness
Antonyms
STRONGEST
dishonesty evil immorality
STRONG
impurity indecency
WEAK
blemish censure condemnation debasement degradation denunciation derision disgrace dishonor disrespect humiliation ill repute reproach stigma
NOUN
incorruptibility
Synonyms
STRONG
bluntness candor confidence conscientiousness equity fairness faithfulness fidelity frankness genuineness goodness honor honorableness impeccability integrity justness loyalty morality openness outspokenness plainness principle probity rectitude reputability responsibility right scrupulousness self-respect sincerity soundness straightforwardness straightness trustiness uprightness veracity virtue
WEAK
evenhandedness upstandingness
Antonyms
STRONG
corruption disgrace dishonesty dishonor disloyalty distrust evil falsehood immorality inconstancy inequity injustice lying partiality treachery unfairness unjustness wrong
NOUN
loyalty
Synonyms
STRONGEST
adherence allegiance devotion faith fealty fidelity honesty honor integrity obedience patriotism reliability sincerity support tie
STRONG
ardor attachment bond conscientiousness constancy devotedness duty earnestness homage incorruptibility probity resolution scrupulousness single-mindedness singleness staunchness steadfastness subjection submission troth trueness trustiness truth truthfulness uprightness zeal
WEAK
inviolability trueheartedness
Antonyms
STRONGEST
disgrace dishonesty dishonor disloyalty lying treachery
STRONG
faithlessness inconstancy indifference
WEAK
undependability unfaithfulness
NOUN
plausibility
Synonyms
STRONGEST
believability soundness validity
STRONG
chance color credibility credibleness integrity likelihood plausibleness possibility probability prospect reliability satisfactoriness solidity solidness tenability
WEAK
creditability creditableness
Antonyms
STRONG
improbability unlikelihood
NOUN
plausibleness
Synonyms
STRONG
believability chance color credibility credibleness integrity likelihood plausibility possibility probability prospect reliability satisfactoriness solidity solidness soundness tenability validity
WEAK
creditability creditableness
Antonyms
STRONG
improbability unlikelihood
NOUN
probity
Synonyms
STRONGEST
integrity morality rectitude righteousness rightness sincerity truthfulness
STRONG
equity fidelity goodness honor justice uprightness virtue worth
Antonyms
STRONGEST
corruption dishonesty
STRONG
dishonor evil partiality unfairness
WEAK
deceit
NOUN
reliability
Synonyms
STRONGEST
accuracy authenticity honesty loyalty safety security soundness
STRONG
constancy faithfulness fidelity steadfastness
Antonyms
STRONGEST
danger falsehood
STRONG
disloyalty inconstancy treachery unsteadiness
NOUN
rep
Synonyms
STRONG
acceptability account approval authority character credit dependability distinction eminence esteem estimation fame favor honor influence mark name notoriety opinion position prestige privilege prominence rank regard reliability renown report repute respectability standing stature weight
WEAK
éclat
Antonyms
STRONG
disapproval disbelief disfavor dishonor dislike disregard disrespect ill repute inferiority insignificance lowliness unimportance
NOUN
reputation
Synonyms
STRONGEST
character fame honor influence name notoriety opinion position prestige prominence standing stature
STRONG
acceptability account approval authority credit dependability distinction eminence esteem estimation favor mark privilege rank regard reliability renown rep report repute respectability weight
WEAK
éclat
Antonyms
STRONGEST
unimportance
STRONG
disapproval disbelief disfavor dislike disregard disrespect
WEAK
disreputableness ill repute notoriety
NOUN
repute
Synonyms
STRONGEST
renown
STRONG
acceptability account approval authority character credit dependability distinction eminence esteem estimation fame favor honor influence mark name notoriety opinion position prestige privilege prominence rank regard reliability rep report respectability standing stature weight
WEAK
éclat
Antonyms
STRONG
disapproval disbelief disfavor dishonor dislike disregard disrespect ill repute inferiority insignificance lowliness unimportance
NOUN
repute
Synonyms
STRONG
character chastity courage decency dignity fairness goodness honestness honesty incorruption incorruptness innocence modesty morality morals prestige principles probity purity rectitude reputation respect righteousness status truthfulness uprightness virtue
WEAK
good name good report
Antonyms
STRONG
amorality badness corruption deceit dishonesty dishonor evil immorality impurity indecency lowliness lying unethicalness unfairness
NOUN
sincerity
Synonyms
STRONGEST
candor earnestness frankness genuineness goodwill impartiality probity reliability seriousness truth truthfulness veracity
STRONG
artlessness heart honor innocence justice openness singleness wholeheartedness
WEAK
bona fides good faith guilelessness sincereness
Antonyms
STRONGEST
dishonesty falsehood lying unimportance
WEAK
insincerity untrustworthiness
NOUN
upstandingness
Synonyms
WEAK
bluntness candor confidence conscientiousness equity evenhandedness fairness faithfulness fidelity frankness genuineness goodness honor honorableness impeccability incorruptibility integrity justness loyalty morality openness outspokenness plainness principle probity rectitude reputability responsibility right scrupulousness self-respect sincerity soundness straightforwardness straightness trustiness uprightness veracity virtue
NOUN
veraciousness
Synonyms
WEAK
accuracy actuality authenticity candor correctness credibility exactitude exactness fact fairness fidelity frankness genuineness gospel honest-to-god truth honesty honor impartiality integrity like it is openness precision probity real McCoy reality rectitude rightness sincerity straight stuff trueness truism truth truthfulness uprightness veridicality verisimilitude verity word
NOUN
veracity
Synonyms
STRONGEST
accuracy authenticity credibility fairness genuineness honesty impartiality integrity probity rectitude rightness sincerity truthfulness
STRONG
actuality candor correctness exactitude exactness fact fidelity frankness gospel honor openness precision reality trueness truism uprightness verisimilitude verity word
WEAK
honest-to-god truth like it is real McCoy straight stuff
Antonyms
STRONGEST
deceit dishonesty falsehood lying unfairness
STRONG
falseness hypothesis imprecision inaccuracy inexactness infidelity theory
WEAK
falsity
NOUN
veridicality
Synonyms
WEAK
accuracy actuality authenticity candor correctness credibility exactitude exactness fact fairness fidelity frankness genuineness gospel honest-to-god truth honesty honor impartiality integrity like it is openness precision probity real McCoy reality rectitude rightness sincerity straight stuff trueness truism truth truthfulness uprightness veraciousness verisimilitude verity word
NOUN
virtue
Synonyms
STRONGEST
advantage character ethic excellence faith generosity goodness ideal kindness love merit morality purity quality rectitude righteousness value
STRONG
arete asset charity chastity consideration credit faithfulness fineness fortitude high-mindedness hope incorruptibility innocence justice plus probity prudence respectability temper temperance uprightness worth worthiness
WEAK
ethicality ethicalness good point
Antonyms
STRONGEST
disadvantage dishonesty evil imperfection meanness
STRONG
disbelief disregard disrespect unfairness wildness
WEAK
dishonor immorality vice

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Last week, Altman was the subject of a investigative profile in The New Yorker magazine that called into question his trustworthiness and fitness to lead a company developing controversial AI technology.

From BBC • Apr. 13, 2026

Beyond the dubious and prejudicial methodology, the poll was conducted online, which further undermines its trustworthiness.

From Salon • Apr. 13, 2026

Neither are Danish and Greenlandic doubts about the trustworthiness of the U.S.

From Los Angeles Times • Feb. 6, 2026

"It is precisely this deliberate openness and community model that upholds the neutrality and trustworthiness essential for a global encyclopedia: no single individual, company, or agenda can exert influence over the work."

From Barron's • Nov. 14, 2025

“Yeah, you’re right!” said Harry, and he felt even more cheered at the thought that Dumbledore had had some reservations, however faint, about Snape’s trustworthiness.

From "Harry Potter and the Deathly Hallows" by J.K. Rowling