"horrible beast" is a correct and usable phrase in written English.
It can be used to describe a frightening or terrifying creature. You can use it in a sentence such as, "As I wandered through the dark forest, I came face to face with a horrible beast lurking in the shadows."
Oh, and pretend there's a horrible beast there.
"The vine itself is a horrible beast," Ms. Latson said, because it can climb as much as 60 feet and choke trees.
From this oversized plywood shark we have slid down the slippery slope to tabloid (and broadsheet) reporting of football being the horrible beast it is.
Near the opening of the film, after a horrible beast has savaged a young woman, another young woman is about to be attacked by a pack of leering thugs.
Earth has been destroyed by climate change, pollution or whatever, and now humans exist in exile on other planets, but a space-flight with dad and son on board crashes on Earth, injuring Cypher badly, and now Kitai must win his respect by recovering a vital distress flare, which he can only do by vanquishing a horrible beast that feeds on human fear.
Not just in this emergency at sea, because in these situations the sea is always a horrible beast.
And what are these horrible beasts that threaten all of mankind?
Asked about the creatures, he said they would be the best of the best, nine or so horrible beasts selected from what he said was an "American Idol -like audIdol -like of audition created for the filine
From the beginning, del Toro had imagined that his creatures, unlike Lovecraft's, would have a fatal vulnerability — one that explained why the horrible beasts had remained trapped in Antarctica.
What's sexier than a still from some mediterranean holiday fuckfest fantasy porno overlayed with the terrifying, piercing eyes of some horrible jungle beast and some cheap and nasty gradient?
That is the nature of the beast, horrible though it may be.
