adjective satellite (s)

• of uncertain outcome; especially fraught with risk(adj.all)

  Synonym:
  chanceful, dicey, dodgy
  

  source: wordnet30
• subject to accident or chance or change(adj.all)

  Example:
  A chancy appeal at best.
  

  Synonym:
  flukey, fluky, iffy
  

  source: wordnet30