What context can I use each word in?
Learn when and how to use these words with these examples!
infidelity
Example
She couldn't forgive him for his infidelity. [infidelity: noun]
Example
He was accused of infidelity after his wife found out about his affair. [infidelity: synonym for cheating]
affair
Example
They had an affair while he was still married. [affair: noun]
Example
She was devastated when she found out about his secret affair. [affair: synonym for infidelity]
Good things to know
Which word is more common?
Infidelity is a more formal term that is commonly used in professional or academic contexts. Affair is a more casual term that is frequently used in everyday language.
What’s the difference in the tone of formality between infidelity and affair?
Infidelity is a more formal term that is typically used in professional or academic contexts. It is also more commonly used in legal or medical settings. Affair is a more casual term that is commonly used in informal conversations and media.
