Refusing to change one's attitude, purpose, or principles; immovable:
Not changing or subject to change; constant.
Not flexible or pliant; stiff:
Not to be altered; immutable:
Capable of being changed or adjusted to meet particular or varied needs:
Find another word for inalterable. In this page you can discover 9 synonyms, antonyms, idiomatic expressions, and related words for inalterable, like: immutable, inflexible, invariable, ironclad, rigid, unalterable, unchangeable, flexible and alterable.