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 of fantastically

• extremely
• incredibly
• very
• terribly
• highly
• too
• badly
• damned
• so
• damn
• really
• severely
• desperately
• super
• intensely

Examples of fantastically in a Sentence

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

Recent Examples on the Web

The impossible-to-murder pair chase each other with a machete, shotgun, and chainsaw throughout the fantastically campy film, which pays homage to the classics like Death Becomes Her. — Charisma Madarang, Rolling Stone, 12 Aug. 2026

As anyone with even a passing interest in quantum computing knows, qubits are fantastically delicate. — John Koetsier, Forbes.com, 7 Aug. 2026

Microsoft’s Azure cloud business, like Google Cloud and Amazon Web Services, is doing fantastically. — Jim Cramer, CNBC, 2 Aug. 2026

This is a fantastically kinetic Odyssey, one that emphasizes the physical arduousness of Odysseus’ journey and the punishing, spectacular landscape of his world. — Caroline Mimbs Nyce, New Yorker, 17 July 2026

Word History

Etymology

fantastical + -ly entry 2

First Known Use

1543, in the meaning defined at sense 1

Rhymes for fantastically

• drastically
• plastically
• elastically
• sarcastically
• enthusiastically