adjective (a)

• immune to attack; impregnable

  kebal terhadap serangan; ditembus

  Example:
  Gunners raked the beach from invulnerable positions on the cliffs.
  

  Antonym:
  vulnerable
  

  source: wordnet30
• Incapable of being wounded, or of receiving injury.

  tidak mampu bersikap terluka, atau dari menerima cedera.

  source: webster1913