incombustible
noncombustible
airtight
ballproof
bombproof
bulletproof
burglarproof
corrosionproof
dampproof
fire-resistant
fire-resisting
fire-retardant
fire-retarded
fireproofed
flame-retardant
flameproof
foolproof
hermetic
holeproof
impervious to
insulate
leakproof
noiseproof
proof
proof against
punctureproof
resistant
rustproof
shatterproof
shellproof
soundproof
tight
waterproof
watertight
weatherproof
fireproofing
5
Sheetrock
bald-faced
barn-like
brick-and-stone
chart-room
cold-storage
destructible
earthenware
four-story
glass-fronted
graniteware
heat-resistant
high-security
in-memory
ingenerable
lead-lined
lockable
lowermost
material
megalithic
nondurable
outtime
petri
pyjama
red-brick
safe-deposit
seven-level
single-story
skyey
star-sown
true
twenty-five-foot
two-hand
undestroyed
unheated
unincumbered
well-furnished
well-hidden
well-ventilated
were