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

Her knowledge of the scene here is truly phenomenal, and her passion for eating out, her home city, and meeting new people is fantastically infectious. — Condé Nast, Condé Nast Traveler, 6 Oct. 2026

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

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