Wiktionary
perishingly
adv. extremely cold. Emphasising the extreme degree of coldness.
Usage examples of "perishingly".
With Stannis broken and Renly dead, only a Stark victory can save him from Lord Tywin's vengeance, but the chances of that grow perishingly slim.
He is making this much harder, thought Davos wearily, and it was perishingly hard to begin with.
With Stannis broken and Renly dead, only a Stark victory can save him from Lord Tywin’s vengeance, but the chances of that grow perishingly slim.