(COLD) [adjective] - (of weather) extremely cold, esp. in a way that can cause you to feel physical paina bitter wind/winterbitter weatherMake sure you wrap up warmly - it's bitter outside.Even in the bitter cold, thousands of homeless people sleep on the streets of the city.
BITTER
Meaning of BITTER in English
Cambridge English vocab. Кембриджский английский словарь. 2012