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

And its demise was clearly the handiwork of that fearsome galactic wind. —Frank Landymore, Futurism, 10 June 2026

One natural guess is that galaxies above the critical mass simply lose more of their normal matter to outflows from supernovas and active galactic nuclei. —Paul Sutter, Space.com, 9 June 2026

The galactic launch also featured four collectible cups with a purchase of one of its combo items. —Chiara Kim, PEOPLE, 1 June 2026

This is no coincidence; galactic mergers are more likely at the cluster’s gravitational center, and astronomers think the chaos of such collisions helps give ellipticals their characteristic spheroidal shape. —Phil Plait, Scientific American, 29 May 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