Efficient
Efficient adjective - Producing or capable of producing a desired result.
Unanswerable and efficient are semantically related In some cases you can use "Unanswerable" instead an adjective "Efficient".
Unanswerable
Unanswerable adjective - Not capable of being challenged or proved wrong.
Efficient and unanswerable are semantically related in right topic. Sometimes you can use "Efficient" instead an adjective "Unanswerable".
Nearby Word: unanswered
Cite this Source
Unanswerable and Efficient. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/efficient/unanswerable
Efficient & Unanswerable. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/efficient/unanswerable>.
Unanswerable or Efficient. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/efficient/unanswerable.
Google Ngram Viewer shows how "efficient" and "unanswerable" have occurred on timeline