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untrustworthy

untrustworthy

21 4.8
Not honest or reliable with promises
  • adjective
  • /ʌnˈtrʌstˌwɜrði/
translation icon : poco fiable
  • Would you tell me if you thought Naomi was untrustworthy?
  • increasingly untrustworthy
  • become untrustworthy

And the other one is kind of shifty and untrustworthy or mysterious.

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Examples

  • Deep down l always knew he was untrustworthy.

  • This government's conduct of economic policy has not only been incompetent, it has been unscrupulous, untrustworthy and untruthful.

  • And the media are completely untrustworthy for a single reason.

  • I am now responsible for warning an untrustworthy student that he must watch his back.

    Fiction book (2002)
  • That woman is absolutely untrustworthy.

  • At the same time, this very behavior made him untrustworthy to everybody.

    Academic text (2003)
  • Throughout his book, medical practitioners emerge as untrustworthy and self-interested characters.

    Academic text (2014)
  • You seem untrustworthy.

  • Growing up with his left-behind mother, Tim had come to think of love as untrustworthy, a mirage.

    Fiction book (2002)
  • I cannot rely on him to finish the project because he is untrustworthy.

Synonyms

dubious
vsuntrustworthy
90 6.5

Not clearly true or trustworthy and causing doubt

asserts outright undeserving of trust rather than just causing doubt
unreliable
vsuntrustworthy
71 4.1

Not able to be trusted to work or be right

describes the same fault but as a moral or character flaw
faithless
vsuntrustworthy
12 5.6

Not loyal and likely to betray people who trust them

is more general and covers unreliability beyond loyalty issues
untrue
vsuntrustworthy
5 3.4

Not loyal to a person you trust

is broader, applying to any case of not deserving trust
undependable
vsuntrustworthy
3 4.7

Likely to fail or disappoint people

covers both task failure and broader unworthiness of confidence
untrusted
vsuntrustworthy
1 5.0

People do not see it as safe or reliable

focuses on an inherent lack of deserving trust rather than others' view
unfaithful
vsuntrustworthy
1 4.2

Not true to the original work or facts

is focused on failing to deserve trust rather than factual inaccuracy
a bit sketchy
vsuntrustworthy
  • Informal
1 8.6

A little suspicious and not easy to trust

states a clear and stronger absence of deserving trust
untrusty
vsuntrustworthy
  • Archaic
8.9

Not safe to depend on because they may fail or betray you

is the general adjective describing not deserving of trust or confidence
trustless
vsuntrustworthy
8.1

A situation where people do not feel safe and avoid honest conversation

is stronger, stating the person or thing does not deserve trust
sussy
vsuntrustworthy
  • Slang
9.9

A person or thing that seems dishonest and not trustworthy

is the formal, direct description of not deserving trust or confidence

Antonyms

88 2.1

A person or thing you can depend on to be honest

How Trustworthy

trustworthy
88 2.1
dependable
47 2.3
questionable
176 3.9
untrustworthy
21 4.8
treacherous
38 7.1

Surface Forms

untrustworthy positive
untrustworthier comparative
untrustworthiest superlative

Morphology

untrustworthy = trustworthy (transparent) = un + trust + worthy

The adjective is formed by adding the productive negative prefix 'un-' to the clear base 'trustworthy', yielding the straightforward negation.

Etymology

Untrustworthy breaks into un- 'not', trust 'to believe someone', and worthy 'deserving', so the parts are all familiar English words. So, untrustworthy means someone or something 'not deserving' of your trust, in other words unreliable.