"depressing sight" is correct and can be used in written English.
For example: "The sight of homeless people sleeping on the streets was a depressing sight."
"A very depressing sight.
It was a depressing sight.
It was, in my suicidal frame of mind, an incredibly depressing sight.
With their papered-up windows and fading paint, the failed businesses are a depressing sight in an otherwise vibrant neighborhood.
To me there is no more depressing sight than a five-year-old staring at a screen, unsmiling, mouse in hand.
It was one of the most depressing sights, him sat there drinking and watching Big Daddy.
Karsay wonders how he will feel seeing the emptiness and the smoke and what those depressing sights signify.
Brendon conducts his comprehensive tour of empire's fall with characteristic flair, but what depressing sights it offers.
Defense lawyers and judges say one of the most depressing sights in court is the roughly 50percentt of defendants who arrive alone, with no family members.
The most depressing sights in Milan last week were the seemingly endless "eco-installations," typically featuring New Age muzak and digitally animated trees, and apparently bent on guzzling as much energy as pointlessly as possible.
