Unopened (adjective)

1. Not having been opened; still sealed.
2. Not having been examined, considered, or dealt with.

Origin:

Late middle english: from un- (expressing negation) + opened.

Examples:

1. The package was unopened.
2. The letter was unopened.
3. The can was unopened.
4. The book was unopened.
5. The box was unopened.