Invalid and Unfruitful

Invalid

Invalid adjective - Chronically or repeatedly suffering from poor health.

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

Unfruitful

Unfruitful adjective - Not able to produce fruit or offspring.

Invalid and unfruitful are semantically related. Sometimes you can use "Invalid" instead an adjective "Unfruitful".
Cite this Source
Unfruitful and Invalid. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/related/invalid/unfruitful
Invalid & Unfruitful. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/related/invalid/unfruitful>.
Unfruitful or Invalid. 2016. Accessed July 31, 2026. https://thesaurus.plus/related/invalid/unfruitful.
Google Ngram Viewer shows how "invalid" and "unfruitful" have occurred on timeline