Substantial
Substantial adjective - Having great meaning or lasting effect.
Unanswerable and substantial are semantically related In some cases you can use "Unanswerable" instead an adjective "Substantial".
Unanswerable
Unanswerable adjective - Not capable of being challenged or proved wrong.
Substantial and unanswerable are semantically related in right topic. Sometimes you can use "Substantial" instead an adjective "Unanswerable".
Nearby Word: unanswered
Cite this Source
Unanswerable and Substantial. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/substantial/unanswerable
Substantial & Unanswerable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/substantial/unanswerable>.
Unanswerable or Substantial. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/substantial/unanswerable.
Google Ngram Viewer shows how "substantial" and "unanswerable" have occurred on timeline