Fantastic and Undoable

Fantastic

Fantastic adjective - Conceived or made without regard for reason or reality.

Undoable and fantastic are semantically related. In some cases you can use "Undoable" instead an adjective "Fantastic".

Undoable

Undoable adjective - Incapable of being solved or accomplished.
Usage example: a combat mission of that type is not only undoable, it's foolish

Fantastic and undoable are semantically related. Sometimes you can use "Fantastic" instead an adjective "Undoable".
Cite this Source
Undoable and Fantastic. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/fantastic/undoable
Fantastic & Undoable. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/fantastic/undoable>.
Undoable or Fantastic. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/fantastic/undoable.
Google Ngram Viewer shows how "fantastic" and "undoable" have occurred on timeline