Invalid
Invalid adjective - Chronically or repeatedly suffering from poor health.
Run out and invalid are semantically related. In some cases you can use "Run out" instead the word "Invalid" as an adjective or a preposition.
Run out
Run out verb - Use up all one's strength and energy and stop working.
Invalid and run out are semantically related. Sometimes you can use "Invalid" instead the word "Run out" as an adjective or a preposition.
Mutual synonyms
Both terms in one sentence
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He starts having second thoughts, however when he has a vision of himself in the 21st century, where he's become an invalid due to his brain having run out of space for new memories and has to be periodically hooked up to an "Amnesia Machine" or he'll go crazy.
Source: My Skull Runneth Over
Cite this Source
Run out and Invalid. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/invalid/run_out
Invalid & Run out. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/invalid/run_out>.
Run out or Invalid. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/invalid/run_out.
Google Ngram Viewer shows how "invalid" and "run out" have occurred on timeline