unmodifiable

/ˌʌnˈmɑdɪfaɪəbəl/
adjective
  1. Not able to be changed or altered.
    • In the game, the character's base stats are unmodifiable.
    • The software has an unmodifiable default setting for security reasons.
    • The terms of the contract are unmodifiable after signing.
What does "unmodifiable" mean? | whatsthatwordmean | whatsthatwordmean