decisively
Definitions
In a manner that settles an issue or produces a definite result.
With clear, firm, and unmistakable confidence.
Examples
The general acted decisively to secure the perimeter before the enemy could regroup.
She spoke decisively, leaving no room for further argument regarding the new policy.
Synonyms
resolutely firmly unwaveringly definitively conclusively determinedly categorically
Antonyms
hesitantly indecisively tentatively uncertainly ambiguously vacillatingly irresolutely