What context can I use each word in?
Learn when and how to use these words with these examples!
unfailable
Example
The unfailable security system ensured that no unauthorized access was granted. [unfailable: adjective]
Example
The unfailable plan for the project ensured that all deadlines were met. [unfailable: adjective]
infallible
Example
The infallible leader always made the right decisions. [infallible: adjective]
Example
The infallible teachings of the church were accepted without question. [infallible: adjective]
Good things to know
Which word is more common?
Infallible is more commonly used than unfailable in everyday language. Infallible is a more established word with a wider range of applications, while unfailable is a more specialized term used in specific contexts.
What’s the difference in the tone of formality between unfailable and infallible?
Both unfailable and infallible have formal connotations and are often used in academic, technical, or professional contexts. However, infallible may be considered more formal due to its historical and religious associations.
