Fantastically
Fantastically adverb - To a great degree.
Insanely and fantastically are semantically related. In some cases you can use "Insanely" instead an adverb "Fantastically".
Insanely
Insanely adverb - (used as intensives) extremely.
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Synonyms for Insanely
Fantastically and insanely are semantically related. Sometimes you can use "Fantastically" instead an adverb "Insanely".
Mutual synonyms
Cite this Source
Insanely and Fantastically. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/fantastically/insanely
Fantastically & Insanely. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/fantastically/insanely>.
Insanely or Fantastically. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/fantastically/insanely.
Google Ngram Viewer shows how "fantastically" and "insanely" have occurred on timeline