English to English

adjective satellite (s)

• immune to attack; incapable of being tampered with(adj.all)

  Synonym:
  impregnable, inviolable, secure, strong, unattackable
  

  source: wordnet30
• impossible to assail(adj.all)

  Synonym:
  untouchable
  

  source: wordnet30
• without flaws or loopholes(adj.all)

  Synonym:
  bulletproof, unshakable, watertight
  

  source: wordnet30