Deadly
Deadly adverb - To a great degree.
Usage example: I'm deadly serious about making an offer on the house
Fantastically and deadly are semantically related. In some cases you can use "Fantastically" instead an adverb "Deadly".
Nearby Word: dead
Fantastically
Fantastically adverb - To a great degree.
Usage example: a community production of the classic musical that featured fantastically bad singing
Deadly and fantastically are semantically related. Sometimes you can use "Deadly" instead an adverb "Fantastically".
Mutual synonyms
Both words in one sentence
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Shadow Demons are slow but are one of the only units available that can Plane Shift at will, while Wraiths and Death Knights are fantastically deadly, fast-moving flyers.
Source: Video Game / Master of Magic
Cite this Source
Fantastically and Deadly. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/deadly/fantastically
Deadly & Fantastically. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/deadly/fantastically>.
Fantastically or Deadly. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/deadly/fantastically.
Google Ngram Viewer shows how "deadly" and "fantastically" have occurred on timeline