Frail
Unable
Unable adjective - Lacking qualities (as knowledge, skill, or ability) required to do a job.
Mutual synonyms
Both words in one sentence
- But the elderly keep aging, and becoming increasingly frail, yet are unable to die.
Source: Film / Sauna -
And then we have the Ill Boy Akinari Kamiki, the Sun Social Link, a frail, thin young man who has this nasty tendency to go into such fits of coughing that he ends up briefly unable to speak.
Source: Incurable Cough of Death
Cite this Source
Unable and Frail. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/frail/unable
Frail & Unable. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/frail/unable>.
Unable or Frail. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/frail/unable.
Google Ngram Viewer shows how "frail" and "unable" have occurred on timeline