Doable
Doable adjective - Capable of being done or carried out.
Usage example: the assignment will be just barely doable in the time allowed
Undoable
Undoable adjective - Incapable of being solved or accomplished.
Usage example: a combat mission of that type is not only undoable, it's foolish
Both words in one sentence
- Mohs Scale of Sci-Fi Hardness: the series is basically a biopunk drama (with very strong characterization) with the sci-fi being of the 'scientifically plausible but currently undoable/doable but expensive/doable but extremely unethical' kind.
Source: Series / ReGenesis
Cite this Source
Undoable and Doable. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/doable/undoable
Doable & Undoable. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/doable/undoable>.
Undoable or Doable. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/doable/undoable.
Google Ngram Viewer shows how "doable" and "undoable" have occurred on timeline