conclusive

adjective

con·​clu·​sive kən-ˈklü-siv 

-ziv

1

: of, relating to, or being a conclusion

2

: putting an end to debate or question especially by reason of irrefutability

The results were not conclusive.

conclusively adverb

conclusiveness noun

Synonyms

• absolute
• clear
• deciding
• decisive
• definitive
• last

Choose the Right Synonym for conclusive

conclusive, decisive, determinative, definitive mean bringing to an end.

conclusive applies to reasoning or logical proof that puts an end to debate or questioning.

conclusive evidence

decisive may apply to something that ends a controversy, a contest, or any uncertainty.

a decisive battle

determinative adds an implication of giving a fixed character or direction.

the determinative factor in the court's decision

definitive applies to what is put forth as final and permanent.

the definitive biography

Examples of conclusive in a Sentence

the archeological discovery was conclusive proof that the Vikings had indeed settled in North America around 1000 A.D.

a conclusive argument for allowing the students to put on a play of their own choosing

Recent Examples on the Web

Australians have used ultrasonic frequencies and bright red lights to deter the kangaroos, but there’s no conclusive evidence that kangaroos interpret these as threats to avoid. —Sophie Hartley, Ars Technica, 2 Apr. 2024

However, overall research on this topic has not been conclusive, and additional studies are needed to evaluate these effects fully. —Jamin Brahmbhatt, Verywell Health, 3 July 2024

The sample is far too small to be conclusive, but the early results are promising. —Justice Delos Santos, The Mercury News, 2 July 2024

Combined with the official tournament ball, which has a sensor to help detect every touch, and AI, the decision-making process is supposed to be quicker and more conclusive than before. —James Robson, The Christian Science Monitor, 28 June 2024

Word History

Etymology

see conclude

First Known Use

1536, in the meaning defined at sense 1

Kids Definition

conclusive

adjective

con·​clu·​sive kən-ˈklü-siv 

-ziv

: decisive sense 1, convincing

conclusive proof

conclusively adverb

conclusiveness noun

Legal Definition

conclusive

adjective

con·​clu·​sive

1

: of, relating to, or being a conclusion

2

: putting an end to debate or question especially by reason of inability to be refuted

conclusively adverb

conclusiveness noun