Antonyms of noun malleability

1 sense of malleability

Sense 1
malleability, plasticity -- (the property of being physically malleable; the property of something that can be worked or hammered or shaped without breaking)
       Antonym of unmalleability (Sense 1)
      => unmalleability -- (a lack of malleability)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun malleability

1 sense of malleability

Sense 1
malleability, plasticity -- (the property of being physically malleable; the property of something that can be worked or hammered or shaped without breaking)
       => physical property -- (any property used to characterize matter and energy and their interactions)