flame-retardant

Hard to ignite; not supporting or conveying flame.

Japanese Meaning

着火しにくい / 火を伝えにくく、燃え広がりにくい

The flame-retardant curtain prevented the small kitchen fire from spreading.

燃えにくいカーテンが小さな台所の火事の延焼を防いだ。

Sense（1）

Hard to ignite; not supporting or conveying flame.

more flame-retardant

（ comparative ）

most flame-retardant

（ superlative ）