adv.to an unbearable degree

"it was unbearably hot in the room"

Was the Early Eocene ocean unbearably warm or are the proxies unbelievably wrong?
A cause of unbearably painful breast, diffuse dermal angiomatosis
THE PHRASE UNBEARABLY REPEATED
Strangely Dark, Unbearably Bright: from the Volto Santo to the Veronica and beyond in the Divine Comedy
President Obama sent out a warning about a meteorological event that’s going to make this weekend unbearably hot
Here's why it will be so unbearably hot this weekend
Illustrators from 1893 thought the future of fashion would be unbearably weird
Suffocating in the bell jar: the euthanasia request by the unbearably suffering, depressed patient
Earth: Kansas was once unbearably hot: Permian temperatures climbed to nearly 74° celsius
'When I was young I was unbearably hard on myself'