Incapable of changing or being modified

• unalterable

  1. Irrevocable or irreversible
  2. Impossible to alter:
  3. Incapable of changing or being altered

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  1. Irrevocable or irreversible
  2. Impossible to alter:
  3. Incapable of changing or being altered

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• rigid

  1. Not flexible or pliant; stiff:
  2. Scrupulously or severely maintained or performed; rigorous or harsh:
  3. Not moving or flexing:

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  1. Not flexible or pliant; stiff:
  2. Scrupulously or severely maintained or performed; rigorous or harsh:
  3. Not moving or flexing:

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• ironclad

  1. Covered or protected with iron
  2. Difficult to change or break
  3. Rigid; fixed:

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  1. Covered or protected with iron
  2. Difficult to change or break
  3. Rigid; fixed:

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• invariable

  1. Not variable; unalterable; uniform; always having the same value.
  2. Not changing or subject to change; constant.
  3. Not variable; not changing; constant; uniform

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  1. Not variable; unalterable; uniform; always having the same value.
  2. Not changing or subject to change; constant.
  3. Not variable; not changing; constant; uniform

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• inflexible

  1. That cannot be changed; fixed; unalterable
  2. Not easily bent; stiff or rigid.
  3. That cannot be bent or curved; stiff; rigid

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  1. That cannot be changed; fixed; unalterable
  2. Not easily bent; stiff or rigid.
  3. That cannot be bent or curved; stiff; rigid

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• inalterable

  1. Impossible to alter; unchangeable:
  2. That cannot be altered; unchangeable

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  1. Impossible to alter; unchangeable:
  2. That cannot be altered; unchangeable

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• immutable

  1. Never changing or varying; unchangeable
  2. Not subject or susceptible to change.

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  1. Never changing or varying; unchangeable
  2. Not subject or susceptible to change.

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