What does the idiom "without fail" mean?

The expression without fail is one of the idioms that often finds a place in our literature and enriches our language. However, its meaning is not fully understood, so it is sometimes used in the wrong situations. Please review the explanation carefully for the correct use of the without fail idiom.

Meaning of "without fail"


The idiom "without fail" is used to express certainty that something will happen, typically in the future. It implies that failure is not an option and the desired outcome or result is guaranteed. In other words, it means that something is guaranteed to happen without exception.


The phrase "without fail" has long been used in English language. It is believed to have originated from the Latin words "sine faille" which translates to "without failure" or "without any doubt". Over the centuries, it has been used in various contexts to express certainty.


The phrase "without fail" is typically used to express that something is certain to happen. It can be used in simple statements as well as in questions. It can also be used to emphasize a desired outcome or result. The phrase is usually used to express that something has to happen without any delays or excuses.

Example Sentences

  • I will be there without fail.

  • I need you to finish the project without fail.

  • Will you arrive on time without fail?

  • I expect you to do the job without fail.

The meanings of the words in the "without fail" idiom

Idioms with similar meaning

"Don't judge a book by its cover" is an English idiom that means you shouldn't make assumptions about someone or something based solely on its appearance. In Japanese, the similar idiom is "Hana yori dango," which translates to "Dumplings rather than flowers." This idiom means that substance is more important than appearance.


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