The phrase "horrifying sight" is correct and usable in written English.
It is typically used to describe something terrible or frightening that one has seen. For example, "The charred remains of the house was a horrifying sight".
A long, dark oily smudge was all that remained Sunday of the horrifying sight.
And from what I saw of the disaster zone, it's remarkable that the townspeople are so resilient, because it's a horrifying sight.
It's not the most horrifying sight in either film; that honor belongs to the ritualistic crucifixion of a dog.
"It was a horrifying sight," Kishan Namdev Shelke, 57, a train guard, recalled after carrying some of the dead and wounded in his arms.
Sweeping across North America, flying hordes of Rocky Mountain locusts were once an awesome and horrifying sight, huge glittering clouds of insects laying waste countless acres of crops.
Most women are at the mercy of their husband or have to rely on a son even if he is too young to drive – a horrifying sight that I have witnessed several times in Saudi Arabia.
When he lifted the lid, he was horrified at the sight of a blackened, shrivelled potato, left in the box with plastic parts stuck into it.
She sees what she calls "beautiful young girls" coming to her wrestling club and growing horrified at the sight of themselves in the wrestling singlets.
On a visit to the Vatican before he became Pope, the authoritarian Wojtyla was horrified at the sight of bickering theologians.
I remember my sixteen year-old self being horrified at the sight of a HMV employee throwing my CV in the bin: "You want a job?" he laughed dismissively.
