long and drawn-out
protracted - prolonged
Something ‘protracted’ is tedious and continues for a lengthy amount of time, or certainly longer than you believe is necessary, usual, or expected. The word typically implies a great degree of frustration and a sense that something might never end. Often used in a legal or business context, especially with regards to negotiations.
Negotiations over my new contract have been so protracted. I’m growing increasingly frustrated at the company’s refusal to pay me what I think I’m worth.
I’m going to settle the claim out of court. The last thing I need right now is a protracted legal battle!
Our organization has gone about these necessary reforms so protractedly that I’m beginning to wonder if they will ever be fully implemented.