usefully
Definitions
In a way that is helpful or productive.
In a manner that serves a practical purpose or provides an advantage.
Examples
The old barn was usefully converted into a spacious home office.
She usefully organized the files so that everyone could find what they needed quickly.
The software can be usefully applied to solve complex mathematical problems.
Synonyms
productively effectively practically helpfully advantageously beneficially constructively
Antonyms
uselessly ineffectively unproductively pointlessly fruitlessly vainly incompetently