What context can I use each word in?
Learn when and how to use these words with these examples!
expired
Example
I can't drink this milk, it expired yesterday. [expired: past tense]
Example
The passport is expired, so I can't travel abroad. [expired: adjective]
invalid
Example
The contract is invalid because it was signed under duress. [invalid: adjective]
Example
He has an invalid leg and needs a wheelchair to move around. [invalid: noun]
Good things to know
Which word is more common?
Expired is more commonly used than invalid in everyday language, as it is a more versatile term that covers a wide range of contexts. Invalid is less common and is typically used in more formal or technical settings.
Whatโs the difference in the tone of formality between expired and invalid?
Invalid is generally considered more formal than expired, as it is often used in legal or medical contexts. However, both words can be used in formal or informal settings depending on the context.
