fantastic
Americanadjective
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extraordinarily good; excellent.
a fantastic restaurant.
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Also fantastical
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conceived or appearing as if conceived by an unrestrained imagination; odd and remarkable; bizarre; grotesque.
The most fantastic rock formations are visible from the high plateau of the park’s rim trail.
Artists rendered fantastic designs in the margin of the manuscript.
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fanciful or capricious, as persons or their ideas or actions.
We never know what that fantastic creature will say next.
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imaginary or groundless in not being based on reality; foolish or irrational.
You can’t let these fantastic fears of yours control your life.
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extravagantly fanciful; marvelous.
The scenery and lighting they created for the dream sequences are truly fantastic!
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incredibly great or extreme; exorbitant.
The rich are spending fantastic sums of money, even in this economy.
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highly unrealistic or impractical.
They hatched a fantastic scheme to make a million dollars betting on horse races.
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adjective
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strange, weird, or fanciful in appearance, conception, etc
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created in the mind; illusory
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extravagantly fanciful; unrealistic
fantastic plans
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incredible or preposterous; absurd
a fantastic verdict
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informal very large or extreme; great
a fantastic fortune
he suffered fantastic pain
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informal very good; excellent
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of, given to, or characterized by fantasy
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not constant; capricious; fitful
given to fantastic moods
noun
Synonym Usage
See bizarre.
Other Word Forms
Etymology
Origin of fantastic
First recorded in 1350–1400; Middle English fantastik “pertaining to the imaginative faculty,” from Medieval Latin fantasticus, variant of Late Latin phantasticus, from Greek phantastikós “able to present the appearence (of something),” derivative of phantázein “to make present to the eye or mind” (akin to phānós “light, bright,” phaínein “to bring to light, cause to appear”) + -tikos -tic
Explanation
The adjective fantastic has two meanings — extraordinarily brilliant or ludicrously far-fetched. So when your boss calls your suggestion of work-at-home-in-your-bathrobe-Fridays for the whole office fantastic, be sure you know which one he means. We get fantastic from the Latin phantasticus, meaning “imaginary.” Sometimes it’s still used that way: If you call a unicorn a fantastic beast, you’re not paying it a compliment; you’re saying it exists only in fairy tales. Most often, though, fantastic means strikingly out-of-the-ordinary. It can be complimentary ("You got an A? Fantastic!") or disparaging ("He was always foolishly unrealistic, but trying to reach the moon using a balloon tied to his bicycle was his most fantastic idea yet.").
Vocabulary lists containing fantastic
"What Is the Horror Genre?" Vocabulary from the literary criticism
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"What is the Horror Genre?" by Sharon A. Russell
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"Frankenstein" and "How Frankenstein Began"
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
He added: "It's fantastic to see Sgiath get this much deserved award, and I'm very excited to see what other wonderful work we can do with sniffer dogs."
From BBC ● Oct. 14, 2026
"This is not yet at the level of the world's best optical atomic clocks, but for a first prototype it is a fantastic result," says Thorsten Schumm.
From Science Daily ● Oct. 11, 2026
Trump praised his outgoing spokeswoman, saying she had done a "fantastic job" in the role.
From Barron's ● Oct. 9, 2026
“We just finished a fantastic summer tour, 29 shows in 68 days,” the singer said.
From Los Angeles Times ● Oct. 9, 2026
It was fantastic to see your video from the festival at your school.
From "From Twinkle, with Love" by Sandhya Menon
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Get a wordDefinitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
