Bombproof
Bomb´proof`
| a. | 1. | Secure against the explosive force of bombs. |
| Noun | 1. |  bombproof - a chamber (often underground) reinforced against bombing and provided with food and living facilities; used during air raidsSynonyms: air-raid shelter, bomb shelter |
| Adj. | 1. | bombproof - able to resist the explosive force of bombs and shells; "bombproof shelter" Synonyms: shellproof |