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incapable

[in-key-puh-buh l] /ɪnˈkeɪ pə bəl/
adjective
1.
not capable.
2.
not having the necessary ability, qualification, or strength to perform some specified act or function:
As an administrator, he is simply incapable.
3.
without ordinary capability; incompetent.
noun
4.
a thoroughly incompetent person, especially one of defective mentality.
Idioms
5.
incapable of,
  1. not having the ability, qualification, or strength for (a specified act or function).
  2. not open to; not susceptible to or admitting:
    These materials are incapable of exact measurement.
  3. legally unqualified for.
Origin
1585-1595
1585-95; < Late Latin incapābilis. See in-3, capable
Related forms
incapability, incapableness, noun
incapably, adverb
Synonyms
1. Incapable, incompetent, inefficient, unable are applied to a person or thing that is lacking in ability, preparation, or power for whatever is to be done. Incapable usually means inherently lacking in ability or power: incapable of appreciating music; a bridge incapable of carrying heavy loads. Incompetent, generally used only of persons, means unfit or unqualified for a particular task: incompetent as an administrator. Inefficient means wasteful in the use of effort or power: an inefficient manager; inefficient methods. Unable usually refers to a temporary condition of inability to do some specific thing: unable to relax, to go to a concert. 2. impotent, unqualified.
Antonyms
1. able.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for in capability

incapable

/ɪnˈkeɪpəbəl/
adjective
1.
when postpositive, often foll by of. not capable (of); lacking the ability (to)
2.
powerless or helpless, as through injury or intoxication
3.
(postpositive) foll by of. not susceptible (to); not admitting (of) a problem incapable of solution
Derived Forms
incapability, incapableness, noun
incapably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for in capability
incapable
c.1600, from in- "not " + capable.
Online Etymology Dictionary, © 2010 Douglas Harper
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