Achievable
Achievable adjective - Capable of being done or carried out.
Usage example: I think that retirement at 55 is an achievable goal
Useless is an antonym for achievable.
Useless
Useless adjective - Not capable of being put to use or account.
Achievable is an antonym for useless.
Both words in one sentence
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Ironically, it turns out his goal is achievable, but because his belief in it is born out of madness instead of any actual evidence, his own efforts were useless and doomed to failure.
Source: Space Madness
Cite this Source
Useless and Achievable. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/achievable/useless
Achievable & Useless. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/achievable/useless>.
Useless or Achievable. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/achievable/useless.
Google Ngram Viewer shows how "achievable" and "useless" have occurred on timeline