9 Grammatical Pitfalls


[kuh n-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
conclusively, adverb
conclusiveness, noun
nonconclusive, adjective
nonconclusively, adverb
nonconclusiveness, noun
1. definitive, determining. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for conclusively
  • And both parties agree to consider such map and declaration as finally and conclusively fixing the said boundary.
  • Cobras deliberately aim for the eyes of whomever or whatever they feel threatened by, researchers have conclusively proved.
  • If politics were not a factor and modernization implemented, conclusively it would still be airworthy.
  • No corporate saga has ever demonstrated quite so conclusively that politics and business don't mix.
  • We have had a series of devastating economic contractions that prove this quite conclusively.
  • It found relatively little for which the blame could conclusively be placed on acid rain.
  • And the transfer provisions apply even to detainees who have been conclusively determined to pose no threat.
  • Unfortunately this question has never been conclusively answered.
  • But he said a sterile verification process showed conclusively that this yeast was of ancient origin.
  • And it'll take us as long to figure out if it's conclusively working as it did to discover the problem in the first place.
British Dictionary definitions for conclusively


putting an end to doubt; decisive; final
approaching or involving an end or conclusion
Derived Forms
conclusively, adverb
conclusiveness, 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
Cite This Source
Word Origin and History for conclusively

1550s, "in conclusion," from conclusive + -ly (2). Meaning "decisively" is recorded from 1748.



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
Cite This Source

Word of the Day

Difficulty index for conclusive

Some English speakers likely know this word

Word Value for conclusively

Scrabble Words With Friends

Quotes with conclusively