What Is the Term for an Option That Expires Worthless?

An option that expires worthless is said to have "expired out-of-the-money." This means that the option's intrinsic value is zero at expiration. For a call option, the settlement price is less than or equal to the strike price; for a put option, the settlement price is greater than or equal to the strike price.

What Is the Difference between an Option’s Intrinsic Value and Its Time Value at Expiration?
Does an Out-of-the-Money (OTM) Option Have Intrinsic Value?
How Is Intrinsic Value Related to the ‘Moneyness’ of an Option?
What Is the Maximum Profit for an Option Writer?
What Is the Term for an Option Where the Strike Price Equals the Underlying Price?
What Is the Relationship between Theta and the Option’s Moneyness (In-the-Money, Out-of-the-Money)?
What Is the Difference between an Option Expiring ‘In-the-Money’ and ‘Out-of-the-Money’?
What Does a Time Value of Zero Signify?