adjective
- final and conclusive; not able to be changed or improved upon
- most complete and accurate; serving as the best example of its kind
Examples
- The Supreme Court’s ruling was definitive and could not be appealed.
- Scientists are still waiting for definitive proof of the theory.
- This is considered the definitive biography of Abraham Lincoln.
- The test results gave us a definitive answer about the diagnosis.
- Her definitive performance of the role earned critical acclaim.
- The committee reached a definitive decision after hours of debate.
- This dictionary is the definitive guide to American English.