airtight
ballproof
bombproof
bulletproof
burglarproof
corrosionproof
dampproof
fire-resisting
fireproof
flameproof
foolproof
hermetic
holeproof
impervious to
leakproof
proof
proof against
punctureproof
resistant
rustproof
shatterproof
shellproof
soundproof
tight
watertight
weatherproof