Meaning : In a keen or penetrating way.
Example :
He was keenly aware of his own shortcomings.
She pitied her sister acutely.
Acutely aware.
Synonyms : keenly
Meaning : Having a rapid onset.
Example :
An acutely debilitating virus.
Meaning : In a shrewd manner.
Example :
He invested his fortune astutely.
He was acutely insightful.
Synonyms : astutely, sagaciously, sapiently, shrewdly