Definition of "glacially" [glacially]

• By means of glaciers or of glaciation: as, glacially formed hollows.

The Century Dictionary (Public Domain)

• "I can't imagine any viewer not feeling a good amount of respect for the earnest and unaffected acting, the pared-down austerity and authentic Tobacco Road vibe, but it moves very, very slowly -- the word is actually "glacially" -- and is not, by my standards, a film that wins you over as much as one that convinces you to speak well of it lest you be thought unhip by Robert Koehler, Manohla Dargis, Jim Hoberman or Scott Foundas."
• "A second such glacially slow development, perhaps even more momentous, has been a lowering of interfaith barriers, marked most notably by gradually increasing rates and acceptance of religious intermarriage."
• "Generational replacement is a glacially slow process not to mention that young people are the least likely to vote."