unbreakablepledge

noun
UK /ʌnˈbreɪkəbəl plɛdʒ/
US /ʌnˈbreɪkəbəl plɛdʒ/

A promise that can never be broken.

The two friends made an unbreakablepledge to always help each other.


OTHER MEANINGS

2. A serious agreement that nobody is allowed to cancel.

The club members signed an unbreakablepledge to keep their secret safe.

3. A strong personal rule someone promises to follow forever.

She made an unbreakablepledge to be kind to everyone she meets.

4. A lasting bond between people that stays strong no matter what.

Their unbreakablepledge kept the team together through hard times.