Antonyms of adj mitigable

1 sense of mitigable

Sense 1
mitigable -- (capable of being alleviated)

INDIRECT (VIA placable) -> implacable -- (incapable of being placated; "an implacable enemy")

Similarity of adj mitigable

1 sense of mitigable

Sense 1
mitigable -- (capable of being alleviated)
       => placable (vs. implacable) -- (easily calmed or pacified)