bombproof Synonyms

bomb shelter shellproof air-raid shelter armoured steel-plated weatherproof toughened sturdy strengthened steady stalwart stable safety zone airtight ok stormproof shatterproof fallout shelter unattackable abled a1 watertight unassailable bulletproof reinforced leakproof solid shelter flourishing firm FAST durable dependable cohesive bullet-proof ballproof armored active able-bodied hard hardy safe robust resistant protected proof mailed ironclad invulnerable invincible