incapable

Adjective
US[in-key-puh-buhl]/ˌɪnˈkeɪpəbəl/4 syllables

Open English WordNet

Adjective (4)

  1. (followed by ‘of’) lacking capacity or ability“incapable of carrying a tune”“he is incapable of understanding the matter”“incapable of doing the work”Opposite capableSimilar unableRelates to capabilitySee also incompetent
  2. not being susceptible to or admitting of something (usually followed by ‘of’)“incapable of solution”Opposite susceptibleSimilar unsusceptible, insusceptible
  3. (followed by ‘of’) not having the temperament or inclination for“simply incapable of lying”Opposite capable
  4. not meeting requirements“unequal to the demands put upon him”Synonyms: incompetentunequal toOpposite adequateSimilar inadequate, unequal
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hiatusnoun

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Webster's Dictionary (1913)

In·ca′pa·ble adjective

Origin: Pref. in- not + capable: cf. F. incapable, L. incapabilis incomprehensible.

1. Lacking in ability or qualification for the purpose or end in view; not large enough to contain or hold; deficient in physical strength, mental or moral power, etc.; not capable; as, incapable of holding a certain quantity of liquid; incapable of endurance, of comprehension, of perseverance, of reform, etc.

2. Not capable of being brought to do or perform, because morally strong or well disposed; — used with reference to some evil; as, incapable of wrong, dishonesty, or falsehood.

3. Not in a state to receive; not receptive; not susceptible; not able to admit; as, incapable of pain, or pleasure; incapable of stain or injury.

4. Law Unqualified or disqualified, in a legal sense; as, a man under thirty-five years of age is incapable of holding the office of president of the United States; a person convicted on impeachment is thereby made incapable of holding an office of profit or honor under the government.

5. Military As a term of disgrace, sometimes annexed to a sentence when an officer has been cashiered and rendered incapable of serving his country.

☞ Incapable is often used elliptically.

Is not your father grown incapable of reasonable affairs?— William Shakespeare

Synonyms: Incompetent; unfit; unable; insufficient; inadequate; deficient; disqualified. See Incompetent.


In·ca′pa·ble noun

One who is morally or mentally weak or inefficient; an imbecile; a simpleton.

Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54

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