Questionable
Questionable adjective - Giving good reason for being doubted, questioned, or challenged.
Questioning and questionable are semantically related. In some cases you can use "Questioning" instead an adjective "Questionable".
Questioning
Questioning adjective - Inclined to doubt or question claims.
Questionable and questioning are semantically related. Sometimes you can use "Questionable" instead an adjective "Questioning".
Cite this Source
Questioning and Questionable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/questionable/questioning
Questionable & Questioning. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/questionable/questioning>.
Questioning or Questionable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/questionable/questioning.
Google Ngram Viewer shows how "questionable" and "questioning" have occurred on timeline