DictionaryincapableLacking ability
adjective

incapable

in-KAY-puh-bul/ɪnˈkeɪpəbl/

Unable to do or experience something.

She is incapable of reaching the high shelf even on tiptoe.

A woman stretches onto tiptoe but cannot reach a mug on a shelf far above her fingertips, making her inability to perform this particular action visibly concrete.
Etymology

Capabilis connects ability with being able to grasp or hold something, including taking it in mentally. The negative prefix turns that capacity into inability to understand or act.

In context

Dr. Tracey Marks0:30
Setbacks don't mean you're weak or incapable. They mean you're human.
Setbacks vs. Failure: Why Your Brain Gets Trapped in Negative Loops

More examples

  • The damaged machine was incapable of starting.
  • He seemed incapable of telling a deliberate lie.
  • The small team was incapable of handling that workload alone.

Forms

incapable

Similar words

unable
The simpler word for lacking the ability to do something.
incompetent
Incompetent criticizes lack of skill rather than inability for any reason.