Fantastic
Fantastic adjective - Not real and existing only in the imagination.
Usage example: a science fiction writer who can conjure up fantastic worlds and make them seem as real as our own
Hypothetical and fantastic are semantically related. In some cases you can use "Hypothetical" instead an adjective "Fantastic".
Hypothetical
Hypothetical adjective - Existing only as an assumption or speculation.
Fantastic and hypothetical are semantically related. Sometimes you can use "Fantastic" instead an adjective "Hypothetical".
Nearby Words: hypothesis, hypothetic
Mutual synonyms
Cite this Source
Hypothetical and Fantastic. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/fantastic/hypothetical
Fantastic & Hypothetical. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/fantastic/hypothetical>.
Hypothetical or Fantastic. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/fantastic/hypothetical.
Google Ngram Viewer shows how "fantastic" and "hypothetical" have occurred on timeline