Skip to main content
undemonstrable

undemonstrable

9.4
Something that people cannot prove with evidence
  • adjective
  • /ˌʌndɪˈmɒnstrəbl/
translation icon : indemostrable
  • Many scientific theories remain undemonstrable until further evidence is found to support them.

Examples

  • A prosecution depending on "spectral evidence" was at last seen as capricious—as irrefutable as it was undemonstrable.

    Academic text (1992)
  • What they did teach is that undemonstrable assertions, at least when they are grounded in correct politics, constitute legitimate support for scholarly conclusions.

    Academic text (1991)
  • The author's claims about the existence of extraterrestrial life are considered undemonstrable by critics.

  • His theories are interesting but ultimately undemonstrable, lacking the necessary proof to be accepted.

Synonyms

unprovable
vsundemonstrable
5 7.5

No evidence can show it is true

shares exact meaning but differs in form or usage
unverifiable
vsundemonstrable
4 8.1

Not able to be proven or shown to be true

focuses on inability to confirm rather than general demonstration
untestable
vsundemonstrable
2 6.1

Not possible to test or prove by experiment

refers more broadly to being impossible to show by evidence
indemonstrable
vsundemonstrable
1 8.7

Impossible to prove to be true

is identical in meaning but exists as an alternative form

Antonyms

10 5.0

Someone can show it is true using evidence or reasons

9 5.8

Can be shown to be true by clear proof

How Demonstrable

demonstrable
9 5.8
unproven
28 4.9
undemonstrable
9.4
unprovable
5 7.5

Surface Forms

undemonstrable positive

Morphology

undemonstrable = demonstrable (transparent) = un + demonstrate + able

Adding the productive negative prefix 'un-' to 'demonstrable' yields a direct negation; 'demonstrable' itself is transparently 'demonstrate' + '-able'.

Etymology

The word undemonstrable is made of the prefix un- meaning 'not' and demonstrable, from demonstrate meaning 'to show'. So, something undemonstrable cannot be 'shown' or proved by evidence.