definitive

3 definitions • 5 examples

not able to be changed or improved:

a definitive judgment/ruling

definitive answer There are no definitive answers to this problem.

definitive proof The police have no definitive proof of her guilt.

considered to be the best of its type:

He's written the definitive guide to Thailand.

firm, final, and complete; not to be questioned or changed:

There is no definitive scientific evidence that coffee is harmful.