Doubtful
Doubtful adjective - Not feeling sure about the truth, wisdom, or trustworthiness of someone or something.
Questionably and doubtful are semantically related. In some cases you can use "Questionably" instead an adverb "Doubtful".
Questionably
Questionably adverb - In a questionable and dubious manner.
Show all Definitions
Synonyms for Questionably
Doubtful and questionably are semantically related. Sometimes you can use "Doubtful" instead an adverb "Questionably".
Mutual synonyms
Cite this Source
Questionably and Doubtful. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/doubtful/questionably
Doubtful & Questionably. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/doubtful/questionably>.
Questionably or Doubtful. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/doubtful/questionably.
Google Ngram Viewer shows how "doubtful" and "questionably" have occurred on timeline