mutable

/ˈmjutəbəl/
adjective
  1. Likely to change or capable of being changed.
    • The company's plans are mutable depending on market conditions.
    • In programming, a mutable variable can be updated after it is created.
    • Her mood is mutable, shifting from happy to sad in minutes.
What does "mutable" mean? | whatsthatwordmean | whatsthatwordmean