fantastically

adverb

fan·​tas·​ti·​cal·​ly fan-ˈta-sti-k(ə-)lē 

fən-

1

: in a fantastic manner

2

: to a fantastic degree : extremely

fantastically expensive clothes

Synonyms

• achingly
• almighty
• archly
• awful
• awfully
• badly
• beastly
• blisteringly
• bone
• colossally
• corking
• cracking
• damn
• damned
• dang
• deadly
• desperately
• eminently
• enormously
• especially
• ever
• exceedingly
• exceeding
• extra
• extremely
• fabulously
• far
• fiercely
• filthy
• frightfully
• full
• greatly
• heavily
• highly
• hugely
• immensely
• incredibly
• intensely
• jolly
• majorly
• mightily
• mighty
• monstrous [chiefly dialect]
• mortally
• most
• much
• particularly
• passing
• rattling
• real
• really
• right
• roaring
• roaringly
• seriously
• severely
• so
• sore
• sorely
• spanking
• specially
• stinking
• such
• super
• supremely
• surpassingly
• terribly
• that
• thumping
• too
• unco
• uncommonly
• vastly
• very
• vitally
• way
• whacking
• wicked
• wildly

Examples of fantastically in a Sentence

a community production of the classic musical that featured fantastically bad singing

Recent Examples on the Web

And there was a bar in the basement, a brilliant bar with a fantastically grumpy bar lady called Eileen. —Alex Morris, Rolling Stone, 3 Jan. 2025

Paul’s car was a 1967 Chevrolet Corvair with a fantastically glossy candy-tangerine paint job and a black spiderweb detail. —Rachel Kushner, Harper's Magazine, 2 Dec. 2024

The operation is, alas, fantastically botched, leaving her unable to shut her eyes at night. —Negar Azimi, The New Yorker, 12 Dec. 2024

But that’s far from all that’s going on in this fantastically chaotic green room. —Justin Curto, Vulture, 25 Nov. 2024

Word History

Etymology

fantastical + -ly entry 2

First Known Use

1543, in the meaning defined at sense 1