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unbelievable

unbelievable

432 4.9
Very surprising and almost impossible to accept as true
  • adjective
  • /ˌʌnbɪˈliːvəbl/
translation icon : increíble
  • The magician performed an unbelievable trick that left the audience gasping.
  • almost unbelievable
  • seem unbelievable
  • an unbelievable process

They had this, they had this unbelievable setup of security.

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Examples

  • The concentration of wildlife was unbelievable in this little place of only a few square miles.

    Academic text (2003)
  • And Sergio, I think it was unbelievable for all of us.

  • It's, it's, it's unbelievable how fast it's moving.

  • There, within his field of vision, was the unbelievable potential of a new human life.

    Fiction book (1991)
  • Most of the stories I heard seemed unbelievable until they happened to me.

    Academic text (1992)
  • These people have an unbelievable inner life that is going on.

  • It's because of this unbelievable bond of love and trust.

  • Days will be spent with an unbelievable array of animals, especially predators.

    Academic text (1999)
  • Do people know you because of your unbelievable work ethic?

  • I've had some unbelievable England trips with Jamie.

Synonyms

incredible
vsunbelievable
3.5

Very surprising or hard to believe

is similar but stresses extreme unlikelihood that resists belief
extraordinary
vsunbelievable
  • Formal
859 3.8

Very unusual or much greater than usual

is more about causing disbelief through extreme unlikeness or improbability
remarkable
vsunbelievable
588 2.8

Unusual and easy to notice because it is different or surprising

is stronger, implying the surprising fact is hard to accept as true
unlikely
vsunbelievable
487 1.9

People do not expect it to happen or be true

is more forceful, implying it is very difficult to accept as true
absurd
vsunbelievable
288 4.4

So silly or unreasonable that it makes no sense

is about being hard to accept as true rather than just illogical
outrageous
vsunbelievable
98 4.2

Too high to be fair or reasonable

is closer to sheer improbability rather than moral or social excess
unimaginable
vsunbelievable
63 5.4

So strange or large that people cannot believe it

is similar but puts more weight on disbelief than imaginability
improbable
vsunbelievable
53 4.9

Not likely to happen or be true

is stronger, implying near impossibility rather than just low chance
inconceivable
vsunbelievable
46 7.4

Impossible to imagine or believe

is close but focuses more on being unlikely rather than unimaginable
unreal
vsunbelievable
  • Informal
34 5.1

Very impressive and hard to believe

is about not being believable rather than informal praise or amazement
implausible
vsunbelievable
26 7.0

Not likely to be true or hard to believe

is stronger, suggesting it is hard or impossible to believe
astonishing
vsunbelievable
5 3.4

Very surprising and making you feel great wonder

is less about wonder and more about being hard to believe

Antonyms

98 3.7

Easy to accept as true

How Believable

believable
98 3.7
unbelievable
432 4.9
unlikely
487 1.9
improbable
53 4.9
impossible
1.4

Surface Forms

unbelievable positive
unbelievabler comparative
unbelievablest superlative

Morphology

unbelievable = believable (transparent) = un + believe + able

Formed by adding the productive prefix 'un-' to the adjective 'believable' (itself 'believe' + '-able'), so the negative meaning is directly predictable.

Etymology

The word unbelievable is made of the prefix un- meaning 'not' and believe meaning 'accept as true'. So, something unbelievable is 'not able to be believed', usually because it is very surprising or unlikely.