Dissatisfied vs Unsatisfied
- When dissatisfied, you are displeased with someone or something, like poor service for example, that didn't meet your expectations.
- When unsatisfied, you are left wanting more, as is the case whenever I order sushi.
"Not only was I dissatisfied with the quality of the food at the Indian restaurant, the quantity provided left me unsatisfied as well."
An unpaid bill could also be termed "unsatisfied", though it could be due to a dissatisfied customer.