[ kuhn-kloo-siv ]
/ kənˈklu sɪv /


serving to settle or decide a question; decisive; convincing: conclusive evidence.
tending to terminate; closing.

Origin of conclusive

1580–90; < Late Latin conclūsīvus, equivalent to Latin conclūs(us) (past participle of conclūdere to conclude; see conclusion) + -īvus -ive
Related forms Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for conclusive

British Dictionary definitions for conclusive


/ (kənˈkluːsɪv) /


putting an end to doubt; decisive; final
approaching or involving an end or conclusion
Derived Formsconclusively, adverbconclusiveness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for conclusive



1610s, "occurring at the end," from French conclusif, from Late Latin conclusivus, from conclus-, past participle stem of concludere (see conclude). Meaning "definitive, decisive, convincing" (putting an end to debate) is from 1640s. Related: Conclusiveness.

Online Etymology Dictionary, © 2010 Douglas Harper