adverb (r)

• in an indiscriminate manner(adv.all)

  Example:
  She reads promiscuously.
  

  Synonym:
  indiscriminately
  

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

  Example:
  This young girl has to share a room with her mother who lives promiscuously.
  

  Synonym:
  licentiously, wantonly
  

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

  source: webster1913