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untestable

  • a word derived from test.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For years, the simulation hypothesis was regarded as untestable, confined to the realms of philosophy and speculative fiction.

From Science Daily • Nov. 10, 2025

Arguments about quantum theory have a tendency to turn into untestable philosophical speculation.

From New York Times • Jun. 25, 2020

They contend, for example, that inflation is untestable because its predictions can be changed by varying the shape of the inflationary energy density curve or the initial conditions.

From Scientific American • Jul. 7, 2017

But unless an optimal product is defined, this hypothesis is untestable because it is subjective.

From Nature • Mar. 7, 2017

Special creation is not a viable alternative scientific theory because it is not a scientific theory, since it relies on an untestable explanation.

From Textbooks • Apr. 25, 2013