[syn: bombproof, shellproof]
The Collaborative International Dictionary of English v.0.48:
Bombproof \Bomb"proof`\, a.
Secure against the explosive force of bombs. -- n. A
structure which heavy shot and shell will not penetrate.
[1913 Webster]
WordNet (r) 3.0 (2006):
bombproof
adj 1: able to resist the explosive force of bombs and shells;
"bombproof shelter" [syn: bombproof, shellproof]
n 1: a chamber (often underground) reinforced against bombing
and provided with food and living facilities; used during
air raids [syn: bomb shelter, air-raid shelter,
bombproof]
v 1: make safe against bombings