Inconstant
Inconstant adjective - Likely to change frequently, suddenly, or unexpectedly.
Vacant and inconstant are semantically related. In some cases you can use "Vacant" instead an adjective "Inconstant".
Nearby Words: inconstancy, inconstantly
Vacant
Vacant adjective - Lacking contents that could or should be present.
Inconstant and vacant are semantically related. Sometimes you can use "Inconstant" instead an adjective "Vacant".
Cite this Source
Vacant and Inconstant. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/inconstant/vacant
Inconstant & Vacant. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/inconstant/vacant>.
Vacant or Inconstant. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/inconstant/vacant.
Google Ngram Viewer shows how "inconstant" and "vacant" have occurred on timeline