Doubtfully
Doubtfully adverb - With distrust.
Fantastically and doubtfully are semantically related. In some cases you can use "Fantastically" instead an adverb "Doubtfully".
Fantastically
Fantastically adverb - To a great degree.
Doubtfully and fantastically are semantically related. Sometimes you can use "Doubtfully" instead an adverb "Fantastically".
Mutual synonyms
Cite this Source
Fantastically and Doubtfully. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/doubtfully/fantastically
Doubtfully & Fantastically. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/doubtfully/fantastically>.
Fantastically or Doubtfully. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/doubtfully/fantastically.
Google Ngram Viewer shows how "doubtfully" and "fantastically" have occurred on timeline