Failed vs It never worked vs Malfunctioned

When to use each in English, with meaning, register, and examples.

Failed

Top 1,000 (very common)B2adjective

It never worked

Top 2,000 (common)

Malfunctioned

Beyond 10,000 (less common)
Most common: Failed
 FailedIt never workedMalfunctioned
Pronunciation🇬🇧 /["/feɪld/"]/🇺🇸 /["/feɪld/"]/🇬🇧 //ɪt ˈnɛvər wɜːrkt//🇺🇸 //ɪt ˈnɛvər wɜrkt//🇬🇧 //mælˈfʌŋkʃənd//🇺🇸 //mælˈfʌŋkʃənd//
Meaningnot successfulIt didn't function or operate at any time.Did not work properly.
Examplea failed writerI tried to fix the computer, but it never worked.The printer malfunctioned during the big presentation.
RegisterNeutralNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)Beyond 10,000 (less common)
CEFR levelB2--
Part of speechadjective
Collocationsfailed attempt, failed experiment, failed project, failed to meet, failed gradesit never worked out, it never worked properly, it never worked for me, it never worked againmalfunctioned device, malfunctioned equipment, malfunctioned system
Antonymssucceeded, achieved, triumphed-functioned, operated, worked
Common mistakesConfusing 'failed' with 'fail' (incorrect verb tense), Using 'failed' with the wrong object (e.g., 'failed the test' instead of 'failed in the test'), Overusing it in informal contexts where lighter terms would be more appropriateConfusing it with 'It doesn't work' which implies it currently fails., Using it to describe situations where something has improved., Using incorrect tenses, such as 'It never workeded'.Confused with 'malfunction' as a noun instead of an adjective., Using it to describe a person instead of a device., Incorrect verb forms like 'malfunctions' instead of the past tense 'malfunctioned'.
Usage notesUse 'failed' to describe attempts that did not succeed. It's neutral and can be used in various contexts, from academic to casual conversations.Use this phrase when discussing something that was expected to operate but failed. It’s neutral and appropriate for both casual and formal contexts.Use 'malfunctioned' to describe machines or systems that failed. It is suitable in technical contexts but less used in casual conversation.

See it in real clips

Failed
It never worked
Malfunctioned

Frequently asked questions: Failed vs It never worked vs Malfunctioned

What's the difference between Failed, It never worked, and Malfunctioned?

Failed: not successful It never worked: It didn't function or operate at any time. Malfunctioned: Did not work properly.

Which is more common: Failed, It never worked, and Malfunctioned?

Failed is the most common in everyday English.

Can you show an example of each?

Failed: a failed writer It never worked: I tried to fix the computer, but it never worked. Malfunctioned: The printer malfunctioned during the big presentation.

Can I use Failed, It never worked, and Malfunctioned interchangeably?

Not always. Failed, It never worked, and Malfunctioned 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.