Definition of conclusive in US English:

conclusive

adjective

  • 1(of evidence or argument) serving to prove a case; decisive or convincing.

    ‘conclusive evidence’
    ‘the findings were by no means conclusive’
    • ‘This adds up to fairly conclusive evidence that the butcher is the place to go both for quality and cost, but are we losing the shopping skills required?’
    • ‘This in itself is a flawed methodology to find any conclusive evidence of cause and effect.’
    • ‘The fact that the US has declined to provide conclusive evidence to the contrary naturally bolsters such conjecture.’
    • ‘Whether that would have given within the reasonable time some conclusive evidence, I do not know.’
    • ‘Mr. Leidy would give his conclusive evidence and I would be found guilty.’
    • ‘I am not convinced that it is possible to provide a conclusive argument to show that paternalism is never in principle justified in any such case.’
    • ‘Anti-fluoride campaigners say there is no conclusive evidence that fluoridation is safe or prevents decay.’
    • ‘Not for the faint of heart, the easily bored or those expecting a conclusive ending.’
    • ‘A series of tests run over the past 24 hours provided conclusive evidence of the poisoning, Zimpfer said.’
    • ‘In recent days the Pentagon has indicated that a lack of any conclusive evidence has convinced officials that Speicher is dead.’
    • ‘Mr Emery said the diggers will look for evidence of a shaft which would be conclusive proof that it was a well.’
    • ‘Pictures of the incident in the following morning's newspapers appeared to offer conclusive evidence of his menace.’
    • ‘They are worried that conclusive evidence of the banned programs will turn up at any moment.’
    • ‘There is conclusive evidence that passive smoking causes lung cancer and coronary heart disease in adults.’
    • ‘But unless conclusive evidence proves this we cannot authenticate any of these findings.’
    • ‘Finally there is the preparation of the final record reflecting those decisions which is given the status of conclusive evidence.’
    • ‘Sometimes, you have a conclusive evidence right away so the arrest is usually sooner.’
    • ‘There are Government sites that cautiously say there is ‘no conclusive evidence’ of danger.’
    • ‘There are a couple of theories about what her real name might be but there's no real conclusive evidence about who this woman was.’
    • ‘Unfortunately not enough conclusive evidence for the effect of Fumonisins on humans has been collected.’
    incontrovertible, incontestable, irrefutable, unquestionable, undeniable, indisputable, unassailable, beyond dispute, beyond question, beyond doubt, beyond a shadow of a doubt, certain, decisive, convincing, clinching, definitive, definite, positive, final, ultimate, categorical, demonstrative, unequivocal, unarguable, unanswerable, uncontroversial
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    1. 1.1 (of a victory) achieved easily or by a large margin.
      • ‘The defeat of Blair was in no way a conclusive victory for the Conservative party.’
      • ‘While not a landslide, Trudeau's victory was conclusive.’
      • ‘What is more, this victory was conclusive, because the outcome of a civil war is definitive.’
      • ‘The conclusive victory was narrow, but Celtic's command of the championship utterly emphatic.’
      • ‘The Wehrmacht's rapid and conclusive victory over the French convinced Hitler and not a few of his generals that he was a military genius.’
      • ‘Yet yesterday, under closer scrutiny, the triumph did not appear quite so conclusive.’
      • ‘After the votes were counted the result was conclusive.’
      • ‘In the end the victory margin of seven points was conclusive but that twenty minutes of easing off was worrying for Ollie and Joey.’
      • ‘Guyon achieves what he has sworn at the outset of the poem, but his victory is not conclusive.’
      emphatic, resounding
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Origin

Late 16th century (in the sense ‘summing up’): from late Latin conclusivus, from Latin conclus- ‘closed up’, from the verb concludere (see conclusion).

Pronunciation