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

This magnetized ridge appears to funnel material and magnetic flux between the merging nuclei, further emphasizing the role of magnetic fields in governing the flow of matter during galactic collisions. —Robert Lea, Space.com, 30 Jan. 2026

Cosmic ray detectors hunt rare antideuterons as dark matter annihilation signatures—but galactic cosmic rays smashing into interstellar gas also produce them, creating background noise. —Tejasri Gururaj, Interesting Engineering, 29 Jan. 2026

At that first ceremony in 2010, Gaga walked the carpet in a sculptural, galactic Armani Privé dress with a high-low structured hem over a tulle catsuit. —Kase Wickman, Vanity Fair, 27 Jan. 2026

The Stardust Treats dessert parlor will satisfy your galactic sweet tooth while Satellite Bites will serve up burgers and fries. —Brady MacDonald, Oc Register, 16 Jan. 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