Cool MateFailure vs Inability
When to use each in English, with meaning, register, and examples.
Failure
Top 1,000 (very common)B2noun
Inability
Top 5,000 (fairly common)C1noun
Most common: Failure
| Failure | Inability | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ˈfeɪljə(r)/"]/🇺🇸 /["/ˈfeɪljər/"]/ | 🇬🇧 /["/ˌɪnəˈbɪləti/"]/🇺🇸 /["/ˌɪnəˈbɪləti/"]/ |
| Meaning | not succeeding in something | Not being able to do something. |
| Example | His failure to meet the deadline cost the company a valuable contract. | the government’s inability to provide basic services |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 5,000 (fairly common) |
| CEFR level | B2 | C1 |
| Part of speech | noun | noun |
| Collocations | complete, total, abject, be doomed to, end in, result in, rate, fear of failure, a history of failure, a possibility of failure, big, great, serious, be, represent, prove, arise from something, failure of, fundamental, general, manifest, excuse, justify, constitute, mechanical, structural, technical, cause, lead to, result in, occur, failure in, mechanical, structural, technical, cause, lead to, result in, occur, failure in, mechanical, structural, technical, cause, lead to, result in, occur, failure in | apparent, seeming, complete, have, be frustrated by, demonstrate |
| Antonyms | success, achievement, victory | ability, capability, power |
| Common mistakes | Using 'failure' as a verb instead of a noun., Confusing 'failure' with 'fault,' thinking they mean the same., Not using appropriate prepositions, such as saying 'failure of' instead of 'failure to.' | Confusing with 'inability's plural form., Using 'inability' instead of 'unable' in sentences., Incorrectly using in informal settings. |
| Usage notes | Use 'failure' to describe a lack of success in a specific endeavor. Avoid in very formal documents unless necessary. In casual conversations, 'failure' can sound heavy; people may prefer 'not succeeding.' | Commonly used in formal contexts. Avoid in casual conversations; instead, use 'can't' or 'not able to'. |
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Frequently asked questions: Failure vs Inability
What's the difference between Failure and Inability?
Failure: not succeeding in something Inability: Not being able to do something.
Which is more common: Failure and Inability?
Failure is the most common in everyday English.
Which is more advanced: Failure and Inability?
Inability is the highest level, at C1, on the CEFR scale.
Are Failure and Inability the same CEFR level?
Failure: B2, Inability: C1 on the CEFR scale.
What part of speech are Failure and Inability?
Failure: noun, Inability: noun.
Can you show an example of each?
Failure: His failure to meet the deadline cost the company a valuable contract. Inability: the government’s inability to provide basic services
Can I use Failure and Inability interchangeably?
Not always. Failure and Inability are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.