Not able to burn or able to burn only with difficulty.(adjective)
Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)
Use "fire-resistant" in a sentence
""Just as a swimming pool is coated with a protective layer before it is soaked, the flame trench will be sprayed with Fondue Fyre, a fire-resistant concrete, to shield it from fire and smoke.""
""It sparked a wide range of scientific innovation with benefits that went far beyond the historic Apollo missions, such as advancements in building materials and fire-resistant fabrics, he said.""
"Lab officials said it was highly unlikely the blaze would reach the drums, and that the steel containers can in any case withstand flames and will be sprayed with fire-resistant foam if necessary."