Doubtfully
Doubtfully adverb - With distrust.
On the surface and doubtfully are semantically related. In some cases you can use "On the surface" instead an adverb "Doubtfully".
On the surface
Doubtfully and on the surface are semantically related. Sometimes you can use "Doubtfully" instead an adverb phrase "On the surface".
Mutual synonyms
Cite this Source
On the surface and Doubtfully. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/doubtfully/on_the_surface
Doubtfully & On the surface. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/doubtfully/on_the_surface>.
On the surface or Doubtfully. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/doubtfully/on_the_surface.