unbreakable
/ʌnˈbreɪkəbəl/
adjective
- Not able to be broken; very strong or durable.
- She bought unbreakable plates for her toddler's meals.
- The company advertises its unbreakable phone screen as a major selling point.
- The unbreakable bond between the two sisters lasted a lifetime.
- Not able to be violated or ended; permanent or absolute.
- They made an unbreakable promise to always support each other.
- Some traditions feel unbreakable, even as the world changes around them.
- The treaty was meant to be an unbreakable agreement between the nations.