adverb (r)

• in an acute manner(adv.all)

  Example:
  She pitied her sister acutely.
  Acutely aware.
  

  source: wordnet30
• having a rapid onset(adv.all)

  Example:
  An acutely debilitating virus.
  

  Antonym:
  chronically
  

  source: wordnet30
• changing suddenly in direction and degree(adv.all)

  Example:
  The visor was acutely peaked.
  Her shoes had acutely pointed toes.
  

  Synonym:
  sharp, sharply
  

  source: wordnet30
• in a shrewd manner(adv.all)

  Example:
  He was acutely insightful.
  

  Synonym:
  astutely, sagaciously, sapiently, shrewdly
  

  source: wordnet30
• In an acute manner; sharply; keenly; with nice discrimination.(adverb)

  source: webster1913