"great acumen" is a correct and usable phrase in written English.
It refers to someone's sharpness or keenness of mind, particularly in making quick and accurate judgments. It can be used in various contexts, such as when describing someone's intelligence, problem-solving ability, or business savvy. Example: "The CEO's great acumen was evident in the company's rapid growth and success."
He displayed great acumen in conciliating the Romans and Jews.
Keillor remembers himself in high school as "a pale, awkward lad of no great acumen" whose nickname was "Foxfart or Doc or Spaz".
According to The Sydney Morning Herald, he was hired by a midsize European company, where he was said to have shown great acumen but to have quickly grown bored with the jobs he was assigned.
Coming in the wake of Mr. Mbeki's ouster in September after a power struggle in his party, the African National Congress, the report has reignited questions about why Mr. Mbeki, a man of great acumen, was so influenced by AIDS denialists.
Contrary to a stereotypical view of Vietnamese brides as "backward," "financial burdens," and "ignorant" of state policies, they show great acumen in taking advantage of the in-between spaces they live in and "negotiating a wide variety of linguistic and cultural circumstances" (Taylor 2007 268).
Maintaining their success will require even greater acumen.
It does not require great military acumen to see that India is at war with itself.
Michael Meade Mahopac, N.Y., Nov. 19, 2008 To the Editor: Mitt Romney's Op-Ed article makes a good deal of sense and reinforces his great business acumen.
He has great financial acumen, an intimate understanding of GMG's portfolio and a full appreciation of our unique purpose and values.
Ōkubo early showed great political acumen and became one of the leading figures in the government of Satsuma, one of the largest and most powerful Japanese feudal domains and a hotbed of anti-Tokugawa sentiment.
Her other son, Robert Rutherford McCormick — who styled himself Colonel but within the family was known as Bertie — was the publisher of The Chicago Tribune and, through great business acumen, turned The Tribune Company into a powerhouse corporation.
