Unable
Unable adjective - Lacking qualities (as knowledge, skill, or ability) required to do a job.
Both words in one sentence
- Can't Have Sex, Ever: Jake has been physically unable to perform since being injured in World War I, though the precise nature of his injury is left vague.
Source: Literature / The Sun Also Rises -
An amusing example in Two and a Half Men: Chelsea wants Charlie to meet her parents, so he makes up a vague excuse about being unable to go because he has an appointment.
Source: I Need to Go Iron My Dog -
Holding Back the Phlebotinum: The Doctor offers only vague explanations as to why the TARDIS is unable to affect events and how they must rely on the time corridors.
Cite this Source
Vague and Unable. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/unable/vague
Unable & Vague. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/unable/vague>.
Vague or Unable. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/unable/vague.
Google Ngram Viewer shows how "unable" and "vague" have occurred on timeline