CONCLUSIVE, adjective 1. Final; decisive; as a conclusive answer to a proposition. 2. Decisive; giving a final determination; precluding a further act. The agreeing votes of both houses were not, by any law or reason, conclusive to my judgment. 3. Decisive; concluding the question; putting an end to debate; as a conclusive argument. 4. Regularly consequential. Men, not knowing the true forms of syllogisms, cannot know whether they are made in right and conlusive modes and figures.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI