not demonstrable; incapable of being demonstrated or proved
Derived forms
indemonstrabilityindemonstrableness
noun
indemonstrably
adverb
Word origin
[1560–70; in-3 + demonstrable]This word is first recorded in the period 1560–70. Other words that entered Englishat around the same time include: identity, radial, segment, sympathy, vertex
Examples of 'indemonstrable' in a sentence
indemonstrable
The permanence of the soul, therefore, as an object of the internal sense, remains undemonstrated, nay, even indemonstrable.
Immanuel Kant, Translated by J. M. D. Meiklejohn The Critique of Pure Reason (1856). Retrieved in 2019 from Project Gutenberg (https://www.gutenberg.org/ebooks/)