noun
coldest time of the year; bitter suffering
Rare literary word. The primary meaning is the depth of winter's cold, but it can also metaphorically refer to severe hardship or suffering. Not used in everyday conversation.
苦寒の候、皆様にはお変わりなくお過ごしのことと存じます。
In this season of bitter cold, I trust you are all doing well.
この詩には、人生の苦寒がにじみ出ている。
This poem is imbued with the bitter suffering of life.