1. Able to resist the explosive force of bombs and shells
   "bombproof shelter";
   - shellproof

1. A chamber (often underground) reinforced against bombing and provided with food and living facilities; used during air raids
   "During the war, many families built bombproofs in their backyards";
   - bomb shelter, air-raid shelter

1. Make safe against bombings
   "They bombproofed the government building"

Derived forms: bombproofs

See also: invulnerable

Type of: chamber, proof