glacially

Adverb

glacially (comparative more glacially, superlative most glacially)

1. Through glacial action.
2. In a (literally or figuratively) icy manner; icily.
   • ‘Monsieur,’ Louis XV glacially remarked to Choiseul days before the dénouement, ‘I told you that I did not want war.’2002, Colin Jones, The Great Nation, Penguin, published 2003, page 278
3. With the speed of a glacier; very slowly.
   • 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...2017 June 26, Alexis Petridis, “Glastonbury 2017 verdict: Radiohead, Foo Fighters, Lorde, Stormzy and more”, in the Guardian
   • 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.2018 January 18, Barry R. Bloom, “A neglected epidemic”, in the New England Journal of Medicine, pages 291–3