The phrase "a singular achievement" is correct and usable in written English.
It can be used to describe an accomplishment that is unique or exceptional in nature.
Example: "Winning the Nobel Prize is considered a singular achievement in the field of science."
Alternatives: "a remarkable accomplishment" or "an extraordinary feat".
The perfect game has given him a singular achievement.
A singular achievement was the opening of Haiti's first wastewater treatment site last fall.
But the Carr memoir can boast a singular achievement: it tells the truth about the life.
Sunday, it seemed, was for the celebration of a singular achievement of restoration.
The book is a treasure, a triumph and a singular achievement that invites fresh and enduring insights with each viewing.
A bloviating idiot, a misogynistic fool, a racist, narcissistic reality TV star without a singular achievement to his name?
Although he emerged within the French literary milieu dominated by writers of the nouveau roman (New Novel) such as Claude Simon, Alain Robbe-Grillet, and Marguerite Duras, Le Clézio developed independently from his contemporaries and established himself early in his career as an author of singular achievement and temperament.
While we would like to believe that fame, visibility and popularity are uniquely determined by performance, representing well-deserved recognition for some sustained or singular achievement, a significant body of media research indicates otherwise, suggesting that fame follows patterns on its own, divorced from talent or performance [8 22].
From a technical perspective, Wright's singular achievement in The Sims was to design a new kind of "object-oriented" operating system that modelled the complexity of social dynamics.
This is a far more formidable and singular achievement than it will appear when the bereaved, survivors and rescue workers gather together tomorrow week, and it did not happen by accident.
Its singular achievement was a complicated network of waterways and reservoirs that were apparently vital to producing enough rice to sustain a population that in the center's heyday numbered in the hundreds of thousands.
