Unspent (adjective)

1. Not having been used up or exhausted.
2. Not having been spent or consumed.

Origin:

Derived from the word 'spent' meaning having been used up or exhausted.

Examples:

1. The savings account was filled with unspent funds that he was saving for a rainy day.
2. The vacation days were unspent and still available to use at a later time.
3. The energy reserves were unspent and available for use during the marathon.
4. The resources were unspent and could be used for other projects.
5. The free time was unspent and could be used for leisure activities.