-ability +
(Latin: a suffix expressing ability, capacity, fitness, or "that which may be easily handled or managed"
)
Just a few examples out of hundreds of words presented as the noun forms of -able; forming nouns of quality from, or corresponding to, adjectives in -able; the quality in an agent that makes an action possible. The suffix -ible has related meanings.
inability
Lack of ability, capacity, means, or power.
inalienability
1. That which cannot be transferred to another or to others.
2. Incapable of being repudiated or transferred to another.
3. Not subject to forfeiture.
inalterable, inalterability
1. Not capable of being changed or altered.
2. Impossible to alter; unchangeable.
incogitability
The quality of being unthinkable; incapable of being thought.
incurability
1. The condition in which a cure is impossible; not curable: an incurable disease.
2. Incapable of being altered, as in disposition or habits.
ineffable, ineffability
1. Incapable of being expressed in words.
2. Too great, or extreme, to be expressed or described in words.
inflammability
1. Easily ignited and capable of burning rapidly; flammable.
2. Quickly or easily aroused to strong emotion; excitable.
Historically, flammable and inflammable mean the same thing; however, the presence of the prefix in- has misled many people into assuming that inflammable means "not flammable" or "noncombustible".
The prefix in- as used in inflammable is not, however, the Latin negative prefix in-, which is related to the English un- and that appears in such words as indecent and inglorious.
The in- used in "inflammability" is an intensive prefix derived from the Latin preposition in. This prefix also appears in the word enflame, but many people are not aware of this derivation, and for clarity's sake it is advisable to use only flammable to give warnings.
insatiability
1. Incapable of being satisfied or appeased.
2. Impossible to satiate or to satisfy.
instability
The quality or attribute of being unstable to function properly and to being irresolute; unreliability.
insuperable, insuperability, insuperableness
1. Impossible to overcome, to get rid of, or to deal with successfully; insurmountable; such as, insuperable odds.
2. The quality or state of being insuperable, battling insuperable odds.
3. Incapable of being passed over, overcome, or surmounted; such as, an insuperable barrier.
intolerability
1. Impossible to tolerate or to endure; unbearable, unendurable.
2. Completely unacceptable.
laudability
Praiseworthiness; worthy of praise.
malleable, malleability, malleableness
1. Capable of being shaped by being beaten or by pressure; a property of certain metals such as gold and silver.
2. Having the characteristics of being beaten out into a thin plate.
3. Having the property (possessed by certain substances, especially metals) of being deprived of form by hammering or pressure, without a tendency or capacity to return to it, or to fracture.
4. Capable of being fashioned or adapted.
manageable, manageability, manageableness, manageably
That which can be managed or controlled: "These are manageable problems."
operable, operability
1. A situation in which an operation is possible; such as, an operable machine.
2. The possibility of putting something into practice; practicable: an operable plan.
3. Treatable by surgical operation with a reasonable degree of safety and chance of success; an operable cancer.