Demonstratable is a word that describes something that can be proven or shown to be true. Some synonyms for this word include verifiable, provable, confirmable, testable, and evident. Verifiable emphasizes the ability to verify or prove something through established methods or procedures. Provable and confirmable both emphasize the ability to demonstrate something through evidence or argumentation. Testable emphasizes the ability to experimentally evaluate or demonstrate the accuracy of something. Evident emphasizes the ability to clearly perceive or understand something without needing further proof or evidence. All of these synonyms convey the idea that something can be shown or proven to be true with evidence or through a reliable process.