fireproof

Won't catch alight

Fireproof describes materials or structures that resist damage from fire or high heat: fireproof insulation, a fireproof safe.

Nothing is truly immune to fire, so the term means highly resistant rather than invulnerable.

To fireproof something is to treat it with flame-retardant materials or design it to withstand fire: They fireproofed the building's steel beams.

properties

incombustible

Unable to catch fire

nonflammableUnable to burn
noncombustibleUnable to catch fire
flame-resistantSlow to ignite

heatproof · refractory · thermostable · impervious · heat-resistant · self-extinguishing

materials

asbestos

Fibrous fireproofing mineral

fiberglassReinforced woven strand composite
vermiculiteExpandable insulating mineral
rockwoolFibrous stone-based insulation

kevlar · tungsten

safe

vault

Secure storage chamber

safeFree from peril
strongboxSecured container for valuables
lockboxSecured container for valuables

safety

sprinkler

Water-dispersing lawn fixture

evacuationRemoval from danger
firebreakCleared barrier against flames

construction

compartmentalization

Division into distinct sections

egressMeans of departure

Categories

protective propertiesshatterproof, dustproof, rustproof, shockproof, windproof
heat resistantoven mitts, potholders, trivet, heat shield, thermostable
safetysafety helmet, hazard, airbag, alert, occupational safety
durabilitytoughness, durable, sturdiness, robustness, sturdy
gear featuresdurable, adjustable, breathable, lightweight, portable
heat and fireignite, burn, flame, blaze, combust

Opposites

susceptibility to fire/combustion

fireproofflammable

Prone to ignition

combustible · inflammable · burnable · ignitable · incendiary

Phrases

fireproof safeHeat-resistant lockbox for valuables

Family

fireproofing, fireproofed, fireproofs

Familiarity: Top 20,000
Profile: Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G