Synonym Chooser

How is the word conclusive different from other adjectives like it?

Some common synonyms of conclusive are decisive, definitive, and determinative. While all these words mean "bringing to an end," conclusive applies to reasoning or logical proof that puts an end to debate or questioning.

conclusive evidence

When would decisive be a good substitute for conclusive?

The words decisive and conclusive can be used in similar contexts, but decisive may apply to something that ends a controversy, a contest, or any uncertainty.

a decisive battle

When could definitive be used to replace conclusive?

The meanings of definitive and conclusive largely overlap; however, definitive applies to what is put forth as final and permanent.

the definitive biography

When might determinative be a better fit than conclusive?

While in some cases nearly identical to conclusive, determinative adds an implication of giving a fixed character or direction.

the determinative factor in the court's decision

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of conclusive The condition has been studied for years with no real conclusive findings about what can be done to treat it. Audrey Noble, Vogue, 8 Oct. 2025 Clarke, Devoret and Martinis had conclusive proof that macroscopic quantum objects, such as a multitude of electrons, could tunnel, too. Dan Garisto, Scientific American, 7 Oct. 2025 The publication also noted that despite there being no conclusive evidence that Assata was directly to blame for the death of Foerster, New Jersey law stated that everyone involved was equally responsible for the murder. Chris Barilla, PEOPLE, 26 Sep. 2025 The maker of Tylenol, Kenvue, and organizations like the World Health Organization state there is no conclusive evidence for the claim. Beth Warren, Nashville Tennessean, 25 Sep. 2025 See All Example Sentences for conclusive
Recent Examples of Synonyms for conclusive
Adjective
  • One of the coolest phenomenons—lights that defy a definitive scientific explanation—predate the park designation.
    Graham Averill, Outside, 28 Oct. 2025
  • However, at least five expeditions to the island and the surrounding waters since 2010 have failed to find definitive proof that Earhart and Noonan were castaways.
    Katie Hunt, CNN Money, 28 Oct. 2025
Adjective
  • The least convincing aspect of the show is the conspiracy itself, which seems oversimplified for a scandal of its magnitude.
    Judy Berman, Time, 29 Oct. 2025
  • The woman in question appears to be none other than Cinda herself — or a convincing doppelgänger — setting up a mystery that will take OMITB full circle as the trio solves the murder of the person who brought them together in the first place.
    Sabienna Bowman, PEOPLE, 28 Oct. 2025
Adjective
  • Chicago won in its return to the postseason for the first time since 2017 – and advanced for the first time since reaching the Eastern Conference final in 2009 – by virtue of a decisive 3-1 win over Orlando City.
    Avi Creditor, New York Times, 23 Oct. 2025
  • New York City mayoral candidates Andrew Cuomo and Curtis Sliwa tried to land a decisive blow against Zohran Mamdani in the last debate before early voting began.
    Brady Knox, The Washington Examiner, 23 Oct. 2025
Adjective
  • This week, the dramatic collapse of plans for Barcelona to play a La Liga game against Villarreal in Miami — first reported by The Athletic — added extra spice to the compelling and captivating Clasico.
    Dermot Corrigan, New York Times, 25 Oct. 2025
  • Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories.
    Ingrid Vasquez, PEOPLE, 25 Oct. 2025
Adjective
  • After winning last year’s World Series, the Dodgers financed a roster that cost about $500 million when including the luxury tax bill.
    Andy McCullough, New York Times, 25 Oct. 2025
  • But last week, the company was declared a transnational criminal organization by United States authorities, and Chen was charged in absentia in New York with money laundering conspiracy and wire fraud conspiracy, along with several associates.
    Helen Regan, CNN Money, 25 Oct. 2025
Adjective
  • Rockets big man Alperen Şengün was limited to 5-of-18 shooting after a strong season opener in Oklahoma City.
    Hunter Patterson, New York Times, 25 Oct. 2025
  • Smith cited a strong support network for transgender students on campus during her appearance.
    Joshua Rhett Miller, MSNBC Newsweek, 25 Oct. 2025
Adjective
  • With no presumptive nominee or clear party leader after the 2024 presidential election loss, the Democratic field remains widely contested—a scenario that could reshape the party’s electoral strategy, policy direction and prospects for challenging Republican front-runners in upcoming races.
    Deputy News Editor, MSNBC Newsweek, 28 Oct. 2025
  • For Moore, the answer was clear as day.
    Literary Hub, Literary Hub, 28 Oct. 2025
Adjective
  • But that factor would not be determinative alone.
    Isaac Chotiner, New Yorker, 6 Oct. 2025
  • No single factor alone will be determinative of the outcome and because of the different fact patterns that can arise when presented with a debt-equity question, not all of the factors will be relevant to each and every case.
    Virginia La Torre Jeker, Forbes.com, 13 Sep. 2025

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Cite this Entry

“Conclusive.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/conclusive. Accessed 30 Oct. 2025.

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