1
inability to do sth
最常用结构，表示“无法做某事”。
His inability to solve the problem frustrated him.
他无法解决这个问题，感到很沮丧。
无能；无力；没有能力
先理解核心含义，再看它在真实句子里的用法。
无能；无力；没有能力
lack of ability to do something
His inability to solve the problem frustrated him.
他无法解决这个问题，感到很沮丧。
缺乏做某事的能力；无能
Lack of the ability to do something; incapability.
缺乏做某事的能力(尤其是心智能力)
lack of ability (especially mental ability) to do something
缺乏做某事的选择；无力
Lack of the option to do something; powerlessness.
缺乏执行的能力
lacking the power to perform
His inability to speak French made the trip difficult.
他不会说法语，这让旅行变得很困难。
She was frustrated by her inability to solve the puzzle.
她因自己解不开这个谜题而感到沮丧。
The team's inability to score cost them the game.
球队无法得分，让他们输掉了比赛。
最常用结构，表示“无法做某事”。
His inability to solve the problem frustrated him.
他无法解决这个问题，感到很沮丧。
较少用，表示在某方面无能。
She showed an inability in mathematics.
她在数学方面表现出无能。
Not this
He is inability to attend the meeting.
Use this
He is unable to attend the meeting.
“inability”是名词，不能用作形容词。应使用形容词“unable”表示“不能”。
Not this
His inability of solving the problem frustrated him.
Use this
His inability to solve the problem frustrated him.
“inability”后接不定式“to do”，不接“of doing”。这是常见介词搭配错误。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
做某事无能
His inability to complete the project on time disappointed everyone.
他无法按时完成项目，令所有人失望。
因无能而沮丧
She felt frustrated by her inability to solve the math problem.
她因无法解决这道数学题而感到沮丧。
长期无能
Chronic inability to manage finances led to bankruptcy.
长期无力管理财务导致了破产。
完全无能
The machine's complete inability to function indicated a serious defect.
机器完全无法运转，表明存在严重缺陷。
明显的无能
Despite his apparent inability to understand, he kept trying.
尽管他明显无法理解，他仍在不断尝试。
无力应对
Her inability to cope with stress caused health issues.
她无力应对压力，导致了健康问题。
我害怕走出家门，/ 因为无法信任他人。
His inability to make decisions frustrated everyone.
他无法做出决定，让所有人都很沮丧。
Use inability naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 inability 拆成 in（不）+ ability（能力），想象‘没有能力’做某事，记住就是‘无能’。
中性; 常用于正式或书面语境，如学术或工作评估，表示缺乏（尤指心理上的）能力或无法完成某事。
All these words rhyme with 'inability' as they share the stressed vowel /ɪ/ and subsequent sounds /lɪti/. Note that they all end with the suffix '-ity' though the immediate preceding part is '-bil-'.
Dictionary facts from ECDICT, WIKTIONARY.