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