In Options Trading, What Is the Closest Analogue to a Dropped Mempool Transaction?

The closest analogue is a 'stale' or 'cancelled' limit order in the Order Book. A limit order that is set too far from the current market price and is never filled may be automatically cancelled by the exchange after a certain time-in-force (TIF) expires.

Similarly, a low-fee Mempool transaction is dropped because it is no longer competitive for inclusion. Both are removed from the queue for non-execution due to time or competitiveness.