The term alterability refers to the quality of being able to be changed or modified. In contrast, synonyms for immutability could include terms like rigidity, inflexibility or unchangeability. Other antonyms for the word alterability could include words like permanence, stability or consistency. A lack of alterability implies something that is fixed and steadfast, unresponsive to external influences. In contrast, the term malleability may indicate that something is pliable or flexible, open to being reshaped or reformed. Antonyms for alterability suggest a degree of unyieldingness or rigidity, describing something that is unalterable, impervious to change or incapable of adjustment.