Flame retardant
Fireproof and flame retardant are semantically related In some cases you can replace term "Fireproof" with "Flame retardant", this terms are similar.
Fireproof
Fireproof adjective - Incapable of being burned.
Flame retardant and fireproof are semantically related in non-flammable topic. You can use "Flame retardant" instead an adjective "Fireproof".
Cite this Source
Fireproof and Flame retardant. (2016). Retrieved 2026, August 12, from https://thesaurus.plus/related/flame_retardant/fireproof
Flame retardant & Fireproof. N.p., 2016. Web. 12 Aug. 2026. <https://thesaurus.plus/related/flame_retardant/fireproof>.
Fireproof or Flame retardant. 2016. Accessed August 12, 2026. https://thesaurus.plus/related/flame_retardant/fireproof.
Google Ngram Viewer shows how "flame retardant" and "fireproof" have occurred on timeline