Origin: 1580–90; <
Late Latin conclūsīvus, equivalent to
Latin conclūs(
us) (past participle of
conclūdere to
conclude; see conclusion) +
-īvus -ive Related formscon·clu·sive·ly, adverb
con·clu·sive·ness, noun
non·con·clu·sive, adjective
non·con·clu·sive·ly, adverb
non·con·clu·sive·ness, noun
Synonyms
1. definitive, determining.