adverb (r)

• uniquely or characteristically(adv.all)

  Example:
  These peculiarly cinematic elements.
  A peculiarly French phenomenon.
  

  Synonym:
  particularly
  

  source: wordnet30
• in a manner differing from the usual or expected(adv.all)

  Example:
  He's behaving rather peculiarly.
  

  Synonym:
  curiously, oddly
  

  source: wordnet30
• to a distinctly greater extent or degree than is common(adv.all)

  Example:
  Under peculiarly tragic circumstances.
  

  Synonym:
  especially, particularly, specially
  

  source: wordnet30
• In a peculiar manner; particulary; in a rare and striking degree; unusually.(adverb)

  source: webster1913