conclusionary
adjective
con·clu·sion·ary kən-ˈklü-zhə-ˌner-ē 
: conclusory
Example Sentences
Recent Examples on the Web But Waltraute’s story is very much live, as is Brünnhilde’s intransigence and spectacular conclusionary self-sacrifice, following the death of her lover Siegfried (Sean Panikkar), an evisceration here involving a car, naturally enough. 
Chris Jones, chicagotribune.com, 27 Apr. 2021
Chris Jones, chicagotribune.com, 27 Apr. 2021 Word History
First Known Use
1976, in the meaning defined above
Legal Definition
conclusionary
adjective
con·clu·sion·ary kən-ˈklü-zhə-ˌner-ē
: conclusory