Extremely
Extremely adverb - To a great degree.
Mirthfully and extremely are semantically related. In some cases you can use "Mirthfully" instead an adverb "Extremely".
Mirthfully
Mirthfully adverb - In a cheerful or happy manner.
Extremely and mirthfully are semantically related. Sometimes you can use "Extremely" instead an adverb "Mirthfully".
Mutual synonyms
Cite this Source
Mirthfully and Extremely. (2016). Retrieved 2026, August 12, from https://thesaurus.plus/related/extremely/mirthfully
Extremely & Mirthfully. N.p., 2016. Web. 12 Aug. 2026. <https://thesaurus.plus/related/extremely/mirthfully>.
Mirthfully or Extremely. 2016. Accessed August 12, 2026. https://thesaurus.plus/related/extremely/mirthfully.
Google Ngram Viewer shows how "extremely" and "mirthfully" have occurred on timeline