Synonyms for

Unbelievable

Verb / ˌʌnbʌˈli:vʌbʌl / Another word for unbelievable — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Definition

difficult or impossible to believe

Synonyms & similar words

improbable credible unconvincing incredible unlikely incredible impossible astonishing amazing fantastic inconceivable unimaginable astounding mind-boggling miraculous unthinkable surprising staggering extraordinary wonderful remarkable unreal breathtaking jaw-dropping phenomenal

Synonyms by register

Formal

incredulous astonishing extraordinary remarkable

Informal

amazing awesome wild crazy unreal

Literary

marvellous wondrous prodigious

Antonyms

believable credible plausible conceivable doubtful possible likely

Common collocations

  • unbelievable story
  • unbelievable speed
  • unbelievable amount
  • unbelievable coincidence
  • unbelievable performance
  • unbelievable luck
  • unbelievable pain

Word family

noun unbelief
adjective unbelievable
adverb unbelievably

Usage note

Often used hyperbolically to express strong emotion, such as surprise or disbelief. Can sometimes imply exaggeration.

Example sentences

  1. The size of the dinosaur bones in the museum was unbelievable.
  2. The speed of the race car was unbelievable.
  3. The amount of pizza my brother ate was unbelievable.
  4. The height of the roller coaster was unbelievable.
  5. The number of balloons at the party was unbelievable.

Quotes

  • 'The only limit to our realization of tomorrow will be our doubts of today.' - Franklin D. Roosevelt
  • 'I am always doing that which I can not do, in order that I may learn how to do it.' - Pablo Picasso
  • 'Believe you can and you're halfway there.' - Theodore Roosevelt

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