This is the 14482nd most frequent Russian word.
ошеломляющей
Astonishing; overwhelming.
The word "ошеломляющее" is used as an adjective (present tense) to describe the performance as stunning or overwhelming.
Её ошеломляющее выступление привлекло внимание зрителей.
Her stunning performance captured the audience's attention.
Here, "ошеломляющее" modifies "masterство" to emphasize the extraordinary quality of the work.
Картина демонстрировала ошеломляющее мастерство художника.
The painting showcased the artist's breathtaking skill.
In this instance, "ошеломляющей" describes the news as startling or overwhelming.