When it comes to the word "backupable", there are several synonyms one can use to express the same idea. For example, the word "restorable" conveys the sense that something can be backed up and later restored if needed. "Recoverable" also carries a similar meaning, indicating that a file or data can be retrieved after being backed up. Additionally, "duplication" and "replication" could also be used to convey the idea of creating a backup copy of something. Other synonyms include "backup-supported", "data backup compatible", and "backup-friendly". No matter which synonym is used, the message remains the same: having a backup is essential for ensuring the safety and security of important files and data.