adverb (r)

• in a wanton manner(adv.all)

  Example:
  The animals were killed wantonly for sport.
  

  source: wordnet30
• in a licentious and promiscuous manner(adv.all)

  Synonym:
  licentiously, promiscuously
  

  source: wordnet30
• In a wanton manner; without regularity or restraint; loosely; sportively; gayly; playfully; recklessly; lasciviously.(adverb)

  source: webster1913