glacially

From glacial +‎ -ly.

• (UK) IPA^(key): /ˈɡleɪʃɪəli/

glacially (comparative more glacially, superlative most glacially)

1. (geology) Through glacial action. [from 19th c.]
2. In a (literally or figuratively) icy manner; icily. [from 19th c.]
   • 2002, Colin Jones, The Great Nation, Penguin, published 2003, page 278:

     ‘Monsieur,’ Louis XV glacially remarked to Choiseul days before the dénouement, ‘I told you that I did not want war.’

3. With the speed of a glacier; very slowly. [from 20th c.]
   • 2017 June 26, Alexis Petridis, “Glastonbury 2017 verdict: Radiohead, Foo Fighters, Lorde, Stormzy and more”, in the Guardian‎:

     Played acoustically, glacially paced and sung in Kristofferson’s parched, age-weathered voice, even his more lighthearted songs – Jesus Was a Capricorn, Best Of All Possible Worlds – were leant an eerie gravitas, while Me and Bobby McGee and Sunday Morning Coming Down sounded heartbreakingly careworn and poignant.

   • 2018 January 18, Barry R. Bloom, “A neglected epidemic”, in the New England Journal of Medicine‎, pages 291–3:

     The daunting problem is that the incidence of tuberculosis has declined only glacially (at a rate of 1.0 to 1.5% per year) and in some places may be increasing.