Thesaurus

unbelievable

adjective

Synonyms & Antonyms of unbelievable

See the Dictionary Definition 

Keep scrolling for more

Learn More about unbelievable

Time Traveler for unbelievable

Time Traveler

The first known use of unbelievable was in 1548

See more words from the same year

Cite this Entry

“Unbelievable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unbelievable. Accessed 27 Oct. 2020.

Keep scrolling for more

More from Merriam-Webster on unbelievable

Dictionary: Definition of unbelievable

Nglish: Translation of unbelievable for Spanish Speakers

Britannica English: Translation of unbelievable for Arabic Speakers

Comments on unbelievable

What made you want to look up unbelievable? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Namesakes Word Quiz

  • a citrus fruit possibly named after a person
  • Which of the following is a fruit named after a Moroccan seaport?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!