Invalid and Watertight

Opposite meaning words

Invalid adjective - Chronically or repeatedly suffering from poor health.

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Watertight is an antonym for invalid.

Watertight adjective - Not allowing water to pass in or out.

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Invalid is an antonym for watertight in accurate topic.

Cite this Source

Watertight and Invalid. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/invalid/watertight

Invalid & Watertight. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/invalid/watertight>.

Watertight or Invalid. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/invalid/watertight.

Google Ngram Viewer shows how "invalid" and "watertight" have occurred on timeline