Synonyms for Protective walls:

• n.

  •parapet (noun)
  • fortification,
  • protective wall,
  • partition,
  • rampart,
  • safeguard,
  • barricade,
  • defense,
  • barrier,
  • buttress,
  • bastion,
  • embankment,
  • buffet,
  • protection.

Antonyms for Protective walls:

• n.

  • parapet
    injury, opening, hurt, harm.