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

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

Examples of galactic in a Sentence

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

Recent Examples on the Web

A’ja Wilson is a galactic force of silk and swagger, anchoring Vegas as the league’s Most Valuable Player (for the fourth time in six seasons). —Steven Louis Goldstein, New York Times, 2 Oct. 2025

In some young star cluster within the Milky Way galaxy, about 27,000 light-years from the galactic center, a new star system has just emerged within the last 60 million years. —Ethan Siegel, Big Think, 2 Oct. 2025

Black holes, billions of times more massive than the Sun, power blazing engines called active galactic nuclei. —Neetika Walter, Interesting Engineering, 1 Oct. 2025

Dense dust lanes can be seen coiling around Andromeda's glowing galactic center, which is thought to house a supermassive black hole 140 million times more massive than our sun. —Anthony Wood, Space.com, 28 Sep. 2025

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