demonstrably
/diˈmɑnstrəbli/ adverb C2- In such a manner that is capable of being demonstrated, shown, or proved (without doubt). · The country has become demonstrably less safe under his leadership.
Learn demonstrably in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.