definitive

Definitions

Conclusive and authoritative; serving as the final or most reliable example of something.

Reaching or providing a final, settled decision or result.

Examples

The scientist published a definitive study that finally settled the long-standing debate.

There is no definitive answer to the question of how the universe began.

Synonyms

conclusive decisive final authoritative absolute settled unquestionable

Antonyms

indefinite tentative provisional ambiguous uncertain inconclusive vague