galactic

adjective

ga·​lac·​tic gə-ˈlak-tik 

1

: of or relating to a galaxy and especially the Milky Way galaxy

2

: huge

a galactic sum of money

Synonyms of galactic

• vast
• giant
• huge
• gigantic
• massive
• tremendous
• enormous
• colossal
• astronomical
• cosmic
• mammoth
• bumper
• immense
• monumental
• planetary
• titanic
• mountainous
• monster
• oceanic
• grand

Examples of galactic in a Sentence

a galactic serving of soda that would have been enough for three moviegoers

Recent Examples on the Web

In fact, the iconic band of hazy light known as the galactic center should routinely be visible for a few more months across the United States – and the rest of the northern hemisphere – arcing across the night sky. — Eric Lagatta, USA Today, 2 July 2026

Take the example of galactic cosmic radiation. — Tom Hawking, Popular Science, 25 June 2026

This means dense lanes of intervening galactic dust block our view, significantly dimming Terzan 5's apparent brightness. — Keith Cooper, Space.com, 22 June 2026

Courtesy of Francois Duhamel His galactic victory lap has been a long time coming after years of taking any gig that came along. — Josh Weiss, Forbes.com, 18 June 2026

Word History

Etymology

borrowed from New Latin galacticus (taken as derivative of Galaxias "Milky Way"), borrowed from Greek galaktikós "milky," from galakt-, gála "milk" + -ikos -ic entry 1 — more at galaxy

First Known Use

1839, in the meaning defined at sense 1

Rhymes for galactic

• climactic
• didactic
• syntactic
• anaphylactic
• extragalactic
• intergalactic
• stereotactic
• chemotactic
• chiropractic
• isotactic
• prophylactic
• lactic

Kids Definition

galactic

adjective

ga·​lac·​tic gə-ˈlak-tik 

: of or relating to a galaxy