Antonyms of adj moldable

1 sense of moldable

Sense 1
fictile, moldable, plastic -- (capable of being molded or modeled (especially of earth or clay or other soft material); "plastic substances such as wax or clay")

INDIRECT (VIA elastic) -> inelastic -- (not elastic; "economists speak of an inelastic price structure")

Similarity of adj moldable

1 sense of moldable

Sense 1
fictile, moldable, plastic -- (capable of being molded or modeled (especially of earth or clay or other soft material); "plastic substances such as wax or clay")
       => elastic (vs. inelastic) -- (capable of resuming original shape after stretching or compression; springy; "an elastic band"; "a youthful and elastic walk")