Impassive
Impassive adjective - Not feeling or showing emotion.
Watertight and impassive are semantically related In some cases you can use "Watertight" instead an adjective "Impassive".
Watertight
Watertight adjective - Not allowing water to pass in or out.
Impassive and watertight are semantically related in unable to be penetrated topic. Sometimes you can use "Impassive" instead an adjective "Watertight".
Mutual synonyms
Cite this Source
Watertight and Impassive. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/impassive/watertight
Impassive & Watertight. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/impassive/watertight>.
Watertight or Impassive. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/impassive/watertight.
Google Ngram Viewer shows how "impassive" and "watertight" have occurred on timeline