unable

adj. not capable, lacking ability

Abel may refer to:In the Bible, Abel is one of two children of Adam and Evebeing healthy or possessing any abilityIn fiction:Able Crown, a fictional character from DC ComicsDoctor Able Cuvier, a fictional character from Batman BeyondIn technology:ABLE (nuclear weapon), a nuclear weapon test series conducted by the United States in the summer of 1946ABLE (programming language), a simplified programming languageAble space probes, probes in the Pioneer program
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Adjective
1. (usually followed by `to') not having the necessary means or skill or know-how; "unable to get to town without a car"; "unable to obtain funds"
(synonym) not able
(antonym) able
(attribute) ability
2. (usually followed by `to') lacking necessary physical or mental ability; "dyslexics are unable to learn to read adequately"; "the sun was unable to melt enough snow"
(synonym) unable(p)
(similar) incapable
3. lacking in power or forcefulness; "an ineffectual ruler"; "like an unable phoenix in hot ashes"
(synonym) ineffective, ineffectual
(similar) impotent

(a.)
Not able; not having sufficient strength, means, knowledge, skill, or the like; impotent' weak; helpless; incapable; -- now usually followed by an infinitive or an adverbial phrase; as, unable for work; unable to bear fatigue.
  

bang4 ren2 men2 hu4
Hanging on someone else's door.
Said of a person who is unable to support himself but depends on others for a living.

zhang1 kou3 jie2 she2
The mouth is open but there's a knot on the tongue.
Being unable to speak.

cuo4 shou3 bu4 ji2
Not being able to manage.
To be caught unprepared.

wei4 neng2 mian3 su2
Unable to break away from the conventions.
It is necessary to follow the worldly ways.

ai4 mo4 neng2 zhu4
Be willing to help but unable to do so.
(No further explanation)

zhi4 si3 bu2 wu4
Unable to understand until death.
Describing a person who is incorrigibly stubborn.