fireproof
verb
Definitions
To make resistant to damage from fire.
Example: I hastily fireproofed my clothing somewhat by pouring a bucket of water over myself before dashing into the flames.
adjective
Definitions
Resistant to damage from fire.
Example: The fireproof safe will protect documents inside for up to four hours in a standard house fire.
Synonyms:fire-resistantflame-retardantrefractory