Fireproof
Fireproof adjective - Incapable of being burned.
Usage example: remember to store valuable papers in a fireproof box
Lit
Lit adjective - Filled with much light.
Both words in one sentence
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His suit is explicitly fireproof, but we don't find this out until about fifty pages later, after he lit himself on fire again.
Source: Wreathed in Flames
Cite this Source
Lit and Fireproof. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/fireproof/lit
Fireproof & Lit. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/fireproof/lit>.
Lit or Fireproof. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/fireproof/lit.
Google Ngram Viewer shows how "fireproof" and "lit" have occurred on timeline