The phrase "a gruesome day" is correct and usable in written English.
It can be used to describe a day that was particularly horrific or distressing, often in relation to events that caused suffering or violence.
Example: "After hearing the news of the tragic accident, it truly felt like a gruesome day for the entire community."
Alternatives: "a horrific day" or "a dreadful day".
It was a gruesome day for a proud rugby club.
It was a gruesome day, with many Taliban prisoners killed when they tried to revolt.
If Grendel wins, it will be a gruesome day.... Then my face won't be there to be covered in death: he will carry me away as he goes to ground, gorged and bloodied...
Gerald Wayne Renfrow thought the nightmare hit its climax 15 years ago on a gruesome day when -- he still barely believes it -- he and his neighbors watched the city police bomb and burn down his solid working-class neighborhood, killing 11 people in a confrontation that became a firestorm.
"I'll be cheering like hell for the Chiefs," said the New Zealander, who was born in the Waikato capital of Hamilton, spent many fruitful years playing in the provincial team's front row and was a member of the pack that reduced the Lions to their component parts on a gruesome day in 1993.
Yet hardly anyone was happier to be in the Kingdom of Fife on a gruesome day than the defending champion, reminded by the presence here of former winners stretching back more than 50 years of the illustrious company he now keeps.
But how long will it be before his own gruesome day of reckoning arrives?
Growing up, television and radio has bombarded us with a flood of semi-information and noisy political propaganda about what actually took place on that gruesome day.
Darling offers pitches and outcomes (but no box scores) from ten selected games in his career, including a successful World Series start against the Red Sox at Fenway Park in 1986, a gruesome windy-day thumping suffered at Wrigley Field, and his celebrated extra-inning near-no-hitter back when he was pitching for Yale.
My first time out sabbing was a gruesome and memorable day.
City sanitation agents made a gruesome discovery on Monday morning while issuing summonses in Queens.
