'deep misery' is correct and usable in written English.
You can use it when you want to convey a sense of extreme unhappiness. For example, "He felt a deep misery as he thought about the loss of his loved one."
During those years she wrote a number of witty novels, full of the pleasures of life, while enduring periods of deep misery.
During the depths of the financial crisis, many private-equity watchers expected deep misery for the buyout firms that issued more than $1.5 trillion in debt to finance leveraged buyouts since 2003, according to Dealogic.
Despite competing claims of victory and the deep misery felt here, the halt in fighting — ordered in separate cease-fire declarations by Israel and Hamas — has opened the way for intensified international efforts to build a more durable peace.
She made a forward march in her high-heeled shoes for a Napoleonic jacket; gave a sweet cuddle to a pair of tiny children's bootees; a brisk glance at a harlequin outfit that could have come from the current Paris shows; and eyes of deep misery as the neon recorded that a vest had been worn for a duel that ended in death.
Eastern Bosnia is in deep misery.
You drowned my heart in deep misery from the inability to become a mother how most women do.
Trachsel was mired in the deepest misery.
In moments of deepest misery she senses her humanity slipping away.
The refugees may be about to face even deeper misery with warnings of a major snowstorm on Wednesday.
The deepest misery is still in Greece, even if fewer people are predicting that the country will have to leave the euro zone.
This week it sank into even deeper misery, as Palestinians killed Palestinians in what looks ominously like a civil war (see article).
