The phrase "a rather miserable" is correct and usable in written English.
It can be used to describe a situation, experience, or feeling that is quite unhappy or unpleasant.
Example: "After the long and rainy week, I found myself in a rather miserable mood."
Alternatives: "somewhat unhappy" or "fairly bleak".
Hepburn speaks every known language with fluent geniality, trailing a rather miserable Tracy after her.
"It became a rather miserable thing and a lot of people wanted rid of it and to some extent I understood them.
It is a rather miserable, undignified end to a band who fell together at school, made their name with a sophisticated pop sound and achieved what they did with a rare class.
Lindsay Duncan was named best actress for her portrayal of a married academic having a rather miserable anniversary in Paris in the Hanif Kureishi-scripted film Le Week-End.
Increasingly, she was the centre of his life, and, since "my nature demands that my life shall be perpetual love", her death condemned him to a rather miserable late-life courtship of a woman who found merely tiresome the elaborate gallantries that had enraptured Mary Ann.
It's probably for the better, really: while interacting with a floating screen seems futuristic and fun, the absence of any sort of tactility would be a rather miserable user experience.
It's emblazoned with a rather miserable-looking Adolf Hitler.
Or a narrow, rather miserable, form of social assistance for people in poverty?
From a small and rather miserable peninsula -- an area commonly known as Christendom or Europe -- at the southwest corner of the gigantic Eurasian landmass, men began to venture forth in frail yet efficient wooden sailing vessels across thousands of miles of ocean.
Then you go for a swim in the eveningtime before you go to bed, and we get a great evening breeze, though there were a couple nights that were rather miserable.
In those who had experienced severe difficulties accessing care, a few participants felt unwilling to disclose the negative effects of pharmacological treatment to physicians over fears of medication being withheld ("I got quite bad [side effects], but I didn't want to tell the GP that because any excuse, I felt any excuse they'd have to stop the meds…so that was rather miserable for a time" P3).
