Antonyms of adj fire-retardant

1 sense of fire-retardant

Sense 1
fire-retardant, fire-resistant, fire-resisting, fire-resistive -- (difficult to burn)

INDIRECT (VIA noncombustible) -> combustible -- (capable of igniting and burning)

Similarity of adj fire-retardant

1 sense of fire-retardant

Sense 1
fire-retardant, fire-resistant, fire-resisting, fire-resistive -- (difficult to burn)
       => noncombustible (vs. combustible), incombustible -- (not capable of igniting and burning)