- serving to settle or decide a question; decisive; convincing: conclusive evidence.
- tending to terminate; closing.
Origin of conclusive
SynonymsSee more synonyms on Thesaurus.com
Examples from the Web for conclusively
To be clear: There have been no double-blind or controlled studies that conclusively confirm this hair-loss hypothesis.Birth Control Made My Hair Fall Out, and I’m Not the Only One
October 14, 2014
Nothing can be conclusively determined without an autopsy and even then we may never know for sure.The Ghost of Yasser Arafat
July 12, 2012
I cannot conclusively define the boundaries of a “humanitarian intervention” and neither can anybody else.Sen. Jim Webb: Congress Must OK Military Intervention
Sen. Jim Webb
May 18, 2012
With the dozens of witnesses who conclusively identified him as the shooter, there is no defense that sets him free.Is Jared Loughner Crazy?
Gerald L. Shargel
January 29, 2011
One reason it's hard to conclusively decide whether Adderall works as a " smart pill" is because its effects are so diffuse.Busting the Adderall Myth
December 21, 2010
The paths of the tornadoes we have referred to conclusively show this.Life: Its True Genesis
R. W. Wright
"And besides, the fall would have killed it," said Kate conclusively.Snow-Bound at Eagle's
Well—that, as I may have remarked before, is indisputably and conclusively that.Spacehounds of IPC
Edward Elmer Smith
"And he—he hasn't been introduced to me," said Miss Lady, conclusively.
It has been shown, conclusively, that he did not place it there, and probably did not cause it to be placed there.Freaks of Fortune
- putting an end to doubt; decisive; final
- approaching or involving an end or conclusion
Word Origin and History for conclusively
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.