adjective fan·tas·tic \ fan-ˈta-stik , fən- \
variants: or less commonly fantastical play \fan-ˈta-sti-kəl\
|Updated on: 20 Jul 2018

Definition of fantastic

1 a : based on fantasy (see 1fantasy 3) : not real
b : conceived or seemingly conceived by unrestrained fancy
  • fantastic new space and nuclear weapons
  • —Jack Raymond
c : so extreme as to challenge belief : unbelievable
  • a fantastic industrial complex of steel, coal, machine tools, and other heavy industries
  • —M. S. Handler
broadly : exceedingly large or great
  • spent fantastic sums on his library
2 : marked by extravagant fantasy or extreme individuality : eccentric
  • fantastic works of art
3 fantastic : excellent, superlative
  • a fantastic meal


play \(ˌ)fan-ˌta-stə-ˈka-lə-tē, fən-\ noun


play \fan-ˈta-stə-kəl-nəs\ noun

Examples of fantastic in a Sentence

  1. The train runs at fantastic speeds.

  2. a fantastic scheme for getting rich quick

Recent Examples of fantastic from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fantastic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of fantastic

Middle English fantastic, fantastical, from Middle French & Late Latin; Middle French fantastique, from Late Latin phantasticus, from Greek phantastikos producing mental images, from phantazein to present to the mind — more at fancy

Synonym Discussion of fantastic

fantastic, bizarre, grotesque mean conceived, made, or carried out without adherence to truth or reality. fantastic may connote extravagance in conception or ingenuity of decorative invention.
    • dreamed up fantastic rumors
bizarre applies to the sensationally strange and implies violence of contrast or incongruity of combination.
    • a bizarre medieval castle in the heart of a modern city
grotesque may apply to what is conventionally ugly but artistically effective or it may connote ludicrous awkwardness or incongruity often with sinister or tragic overtones.
    • grotesque statues on the cathedral
    • though grieving, she made a grotesque attempt at a smile

synonyms see in addition imaginary




Definition of fantastic

: eccentric 1

Origin and Etymology of fantastic

FANTASTIC Defined for English Language Learners


Definition of fantastic for English Language Learners

  • : extremely good

  • : extremely high or great

  • : very strange, unusual, or unlikely

FANTASTIC Defined for Kids


adjective fan·tas·tic \ fan-ˈta-stik \

Definition of fantastic for Students

1 : produced by or like something produced by the imagination
  • a fantastic scheme
2 : extremely good
  • That was a fantastic meal.
3 : barely believable
  • We moved at a fantastic speed.


\-sti-kə-lē\ adverb

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