glacial

adjective

gla·​cial ˈglā-shəl 

1

: suggestive of ice: such as

a

: extremely cold : frigid

a glacial wind

b

: devoid of warmth and cordiality

a glacial handshake

c

: coldly imperturbable

maintained a glacial calm

2

: of a purity marked by the tendency to readily solidify in the form of ice-like crystals

glacial acetic acid

3

a(1)

: of, relating to, or being any of those parts of geologic time from Precambrian onward when a much larger portion of the earth was covered by glaciers than at present

(2)

Glacial : pleistocene

b

: of, relating to, or produced by glaciers

c

: suggestive of the very slow movement of glaciers

progress on the bill has been glacial

glacially

ˈglā-shə-lē 

adverb

Synonyms of glacial

• icy
• freezing
• frigid
• cold
• chilly
• chill
• cool

Examples of glacial in a Sentence

Progress on the bill has been glacial.

a glacial weather front coming down from Canada will bring freezing temperatures this weekend

Recent Examples on the Web

Ubatuba will bring acai bowls and more to the field, while Dippin’ Dots and Happy Ice will offer glacial respites from the late-August Irvine heat. — Brock Keeling, Oc Register, 20 Aug. 2026

These are small to large grasslands usually sprinkled with wetlands (glacial potholes) and set amid private farmland, which supplies the grain. — Ron Spomer, Outdoor Life, 19 Aug. 2026

Universities move at a glacial pace, while the clock speed of innovation in the rest of our world has gone to warp speed. — Ann Kirschner, Forbes.com, 18 Aug. 2026

As the train gains elevation, dense coastal forest gradually gives way to alpine tundra, glacial lakes, rocky peaks, and, early in the season, lingering snowfields before reaching the White Pass Summit at 2,885 feet. — Bailey Berg, Travel + Leisure, 16 Aug. 2026

Word History

Etymology

Latin glacialis, from glacies

First Known Use

1656, in the meaning defined at sense 1

Rhymes for glacial

• facial
• racial
• spacial
• spatial
• bifacial
• biracial
• palatial
• postglacial
• preglacial
• subglacial
• craniofacial
• interfacial

Kids Definition

glacial

adjective

gla·​cial ˈglā-shəl 

1

a

: extremely cold : frigid

b

: lacking warmth of feeling

2

a

: of, relating to, or produced by glaciers

b

: of, relating to, or being any of those parts of geologic time when a large portion of the earth was covered by glaciers

c

capitalized : pleistocene