demonstrably

Definitions

In a way that can be proven or made evident by logic or facts.

Clearly and obviously; in a manner that is beyond doubt.

Examples

The new policy has been demonstrably effective in reducing carbon emissions across the city.

His argument was demonstrably false, as it contradicted the established historical records.

Synonyms

evidently obviously clearly plainly visibly undeniably patently

Antonyms

questionably dubiously vaguely ambiguously uncertainly obscurely theoretically