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

With the theme of the bash being all about space, the pair arrived in their best interpretation of galactic apparel. —Michelle Lee, PEOPLE, 6 Oct. 2025

Summer is perhaps the most popular stargazing season, with meteor showers like the Perseids and virtually all-night views of the Milky Way’s galactic center. —Stephanie Vermillion, Travel + Leisure, 5 Oct. 2025

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

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