1. In a manner that serves to determine, settle, or decide something conclusively.
Usage: formal; often used in legal, philosophical, or technical contexts

Examples

• The court ruled determinatively on the matter, leaving no room for appeal.
• The evidence spoke determinatively to the defendant's guilt.
• The new policy determinatively changed how the company operates.
• Her research findings determinatively established the link between the two variables.
• The contract language determinatively outlined each party's obligations.