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indemonstrable

[ in-di-mon-struh-buhl, in-dem-uhn- ]

adjective

  1. not demonstrable; incapable of being demonstrated or proved.


indemonstrable

/ ˌɪndɪˈmɒnstrəbəl /

adjective

  1. incapable of being demonstrated or proved
“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
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Derived Forms

  • ˌindeˌmonstraˈbility, noun
  • ˌindeˈmonstrably, adverb
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Other Words From

  • inde·monstra·bili·ty inde·monstra·ble·ness noun
  • inde·monstra·bly adverb
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Word History and Origins

Origin of indemonstrable1

First recorded in 1560–70; in- 3 + demonstrable
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Example Sentences

Indemonstrable, in-de-mon′stra-bl, adj. that cannot be demonstrated or proved.—n.

In mathematics, according to Euclid's treatment, the axioms alone are indemonstrable first principles, and all demonstrations are in gradation strictly subordinated to them.

Critical Reason, which realizes that deceptive fictions are not true thought, but dreams—not the result of ripe intellectual effort, but of the childish play of the imagination, seeks the roots of Morality not in the air or in the ether, but in the solid earth; not in some indemonstrable, transcendental sphere, but in an obvious need of human nature.

To Euclid’s successors this axiom had signally failed to appear self-evident, and had failed equally to appear indemonstrable.

A similar remark might be extended to every other class of phenomena really peculiar; and, had it been attended to, would have prevented many chimerical attempts at demonstrations of the indemonstrable, and explanations which do not explain.

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