Incapable
Incapable adjective - Lacking qualities (as knowledge, skill, or ability) required to do a job.
Unable to and incapable are semantically related. In some cases you can use "Unable to" instead an adjective "Incapable".
Nearby Word: incapability
Unable to
Mutual synonyms
Related pairs
- unqualified and incapable
- unqualified and unable to
- unfit and incapable
- unfit and unable to
- unsuitable and incapable
- unsuitable and unable to
- unsuited and incapable
- unsuited and unable to
- inadequate and incapable
- inadequate and unable to
- unequipped and incapable
- unequipped and unable to
- not up to scratch and incapable
- not up to scratch and unable to
Both terms in one sentence
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Discworld: Brutha from Small Gods isn't so much incapable of lying as he is unable to understand the concept.
Source: Brutal Honesty - The one CPU that would inevitably be spawned here would be completely incapable of leaving it, being unable to figure out the bouncy bubbles used to propel yourself out.
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Naoko is incapable of getting properly aroused in sexual situations, and as a consequence is unable to have sex with Kizuki, even though she wants to.
Source: Literature / Norwegian Wood
Cite this Source
Unable to and Incapable. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/related/incapable/unable_to
Incapable & Unable to. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/related/incapable/unable_to>.
Unable to or Incapable. 2016. Accessed July 31, 2026. https://thesaurus.plus/related/incapable/unable_to.
Google Ngram Viewer shows how "incapable" and "unable to" have occurred on timeline