flameproof

/ˈfleɪmpruːf/
adjective
  1. Made or treated so that it will not burn or will resist fire.
    • They installed flameproof insulation in the walls of the laboratory.
    • The chef wore a flameproof apron while working near the open grill.
    • All the curtains in the theater are flameproof to meet safety regulations.
Antonyms
What does "flameproof" mean? | whatsthatwordmean | whatsthatwordmean