inability

An inability refers to lacking the capacity to do something. A deaf person has an inability to hear.

If you know that abilities are things people can do — like the ability of a basketball player to dunk the ball — then you might already have figured out that an inability is something a person cannot do. Most people have an inability to dunk a basketball. People who eat too much have an inability to resist food. Often, this word refers to having mental limitations: an inability to think or figure something out. We all have different abilities and inabilities.

Definitions of inability
1

n lack of ability (especially mental ability) to do something

Antonyms:
ability, power
possession of the qualities (especially mental qualities) required to do something or get something done
Types:
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block, mental block
an inability to remember or think of something you normally can do; often caused by emotional tension
stupidity
a poor ability to understand or to profit from experience
inaptitude
a lack of aptitude
incapacity
lack of intellectual power
unskillfulness
a lack of cognitive skill
analphabetism, illiteracy
an inability to read
uncreativeness
a lack of creativity
incomprehension
an inability to understand
incoordination
a lack of coordination of movements
disfluency
lack of skillfulness in speaking or writing
writer's block
an inability to write
denseness, dumbness, slow-wittedness
the quality of being mentally slow and limited
dullness, obtuseness
the quality of being slow to understand
backwardness, mental retardation, retardation, slowness, subnormality
lack of normal development of intellectual capacities
craziness, folly, foolishness, madness
the quality of being rash and foolish
vacuousness
indicative of or marked by mental vacuity and an absence of ideas
talentlessness
a lack of talent
incapability, incapableness
lack of potential for development
awkwardness, clumsiness, ineptitude, ineptness, maladroitness, slowness
unskillfulness resulting from a lack of training
inefficiency
unskillfulness resulting from a lack of efficiency
amateurishness
something that demonstrates a lack of professional competency
fruitlessness
a lack of creative imagination
unoriginality
uncreativeness due to a lack of originality
Type of:
cognition, knowledge, noesis
the psychological result of perception and learning and reasoning

n lacking the power to perform

Synonyms:
unfitness
Antonyms:
ability
the quality of being able to perform; a quality that permits or facilitates achievement or accomplishment
Types:
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unadaptability
the inability to change or be changed to fit changed circumstances
insensitiveness, insensitivity
the inability to respond to affective changes in your interpersonal environment
incompetence, incompetency
lack of physical or intellectual ability or qualifications
incapability, incapableness
the quality of not being capable -- physically or intellectually or legally
insufficiency
(pathology) inability of a bodily part or organ to function normally
inflexibility, rigidity, rigidness
the quality of being rigid and rigorously severe
crassitude, crassness
the quality of being crass--devoid of refinement
tin ear
insensitivity to the appropriateness or subtlety of language
callosity, callousness, hardness, insensibility, unfeelingness
devoid of passion or feeling; hardheartedness
unperceptiveness
the lack of insight and sympathetic understanding
unkindness
lack of sympathy
incapacity
lack of physical or natural qualifications
cardiac insufficiency, coronary insufficiency
inadequate blood flow to the heart muscles; can cause angina pectoris
Type of:
quality
an essential and distinguishing attribute of something or someone

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