Flame retardant
Incombustible and flame retardant are semantically related In some cases you can use "Incombustible" instead an adjective phrase "Flame retardant".
Incombustible
Incombustible adjective - Incapable of being burned.
Flame retardant and incombustible are semantically related in flameproof topic. You can use "Flame retardant" instead an adjective "Incombustible".
Nearby Word: incombustibility
Cite this Source
Incombustible and Flame retardant. (2016). Retrieved 2026, August 12, from https://thesaurus.plus/related/flame_retardant/incombustible
Flame retardant & Incombustible. N.p., 2016. Web. 12 Aug. 2026. <https://thesaurus.plus/related/flame_retardant/incombustible>.
Incombustible or Flame retardant. 2016. Accessed August 12, 2026. https://thesaurus.plus/related/flame_retardant/incombustible.
Google Ngram Viewer shows how "flame retardant" and "incombustible" have occurred on timeline