"dreadful journey" is correct and usable in written English.
You can use it to refer to a journey that was incredibly unpleasant. For example, "I took a bus from London to Manchester and it was a dreadful journey."
"When I eventually get home, I'm often stressed and angry from a dreadful journey.
But this scorched earth clearance strategy works and I'm stronger – another small notch on this dreadful journey.
Mercifully, the deportees have no idea what awaits them in Auschwitz, at the end of the dreadful journey.
Despite her dreadful journey, her account of which is featured on the right, GNER is willing to return her just £15, equal to the cost of half her return ticket.
"It's a really dreadful journey so I think it's really a sign of desperation, particularly for Eritreans making that choice, because of the risk of being detained in Libya," said Leslie Lefkow of Human Rights Watch.
There are plenty of stories about the dreadful journey women go through when experiencing menopause, often published in women's magazines.
A grim, dreadful train crush of a journey more reminiscent of a silent, polite rugby maul.
Experience dreadful whispers and screams as you journey through crypt chambers and a Halloween art exhibition.
This film is a record of a journey, and it leaves us with the dreadful possibility that all highways are lost.
My third Murder Most Unladylike mystery, First Class Murder, features a train journey across Europe, priceless jewels, international spying, fancy pastry and a dreadful murder.
The thought is enough to fill many minds with dreadful expectation but for Alice, it is one more step in a long journey that began in 2004.
