adverb (r)

• taking care or paying attention(adv.all)

  Example:
  They watched carefully.
  

  source: wordnet30
• as if with kid gloves; with caution or prudence or tact(adv.all)

  Synonym:
  cautiously
  Antonym:
  carelessly, incautiously
  

  source: wordnet30
• In a careful manner.(adverb)

  source: webster1913