Invalid and Untruthful

Invalid

Invalid adjective - Not being in agreement with what is true.
Usage example: that's an invalid assumption on your part

Untruthful and invalid are semantically related. In some cases you can use "Untruthful" instead an adjective "Invalid".

Untruthful

Untruthful adjective - Not being in agreement with what is true.
Usage example: an unintentionally untruthful statement that the candidate later corrected

Invalid and untruthful are semantically related. Sometimes you can use "Invalid" instead an adjective "Untruthful".

Nearby Words: untruth, untruthfully
Cite this Source
Untruthful and Invalid. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/invalid/untruthful
Invalid & Untruthful. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/invalid/untruthful>.
Untruthful or Invalid. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/invalid/untruthful.
Google Ngram Viewer shows how "invalid" and "untruthful" have occurred on timeline