Antonyms of adj ignitable

1 sense of ignitable

Sense 1
burnable, ignitable, ignitible -- (capable of burning)

INDIRECT (VIA combustible) -> noncombustible, incombustible -- (not capable of igniting and burning)

Similarity of adj ignitable

1 sense of ignitable

Sense 1
burnable, ignitable, ignitible -- (capable of burning)
       => combustible (vs. noncombustible) -- (capable of igniting and burning)