Able to resist the explosive force of bombs and shells. Synonym:shellproof.
noun
1.
A chamber (often underground) reinforced against bombing and provided with food and living facilities; used during air raids. Synonyms:air-raid shelter, bomb shelter.
... would withstand any bombardment. Fortunately it was not hit while we were there, although many large shells fell very near; but when I again passed that way, just a week later, I noticed that a big shell had gone through our carefully prepared "bombproof" and completely wrecked it. We only remained a few days and then received orders to go into the front line at Hill 60 (south of Hooge), as an attack was to be made to recover the trenches lost on ... — The Emma Gees • Herbert Wes McBride
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