adjective
definitive
dih-FIN-uh-tiv/dɪˈfɪnətɪv/
Establishing something conclusively and precisely.
The judge points to the photo as definitive proof of the winner.

Etymology
Bounding something completely can also mean bringing it to an end. Definitive carries this conclusive force: it describes something that settles an issue with finality, not merely something clearly stated.
In context
However, no definitive interpretation has been agreed upon as the carvings lack any clear parallels
More examples
- The test provides a definitive answer about whether the water is safe.
- Scholars consider this the definitive edition of her collected poems.
- The survey provides a definitive map of the property boundaries.
Forms
definitive
definitively adverb — In a conclusive and authoritative way.
Similar words
- conclusive
- Emphasizes settling a question by ruling out further doubt.
- authoritative
- Emphasizes trusted expertise rather than necessarily settling a question.
- precise
- Emphasizes exactness without necessarily providing a final or authoritative answer.