Unfilled vs. Unfulfilled — What's the Difference?

Not filled, especially occupational positions.

"Unfulfilled" is the ninth episode of the twenty-second season of the American animated television series South Park. The 296th overall episode of the series, it premiered on Comedy Central in the United States on December 5, 2018.

Simple past tense and past participle of unfill

Lacking fulfillment; marked by a feeling of failure to achieve goals or desires.

Not filled;

Not yet provided as promised, particularly with respect to a contract or an order for a supply of something.

Of persons; marked by failure to realize full potentialities;