insolvable

"The old necklace was a tangled mess; the chains were so inextricable that I couldn't separate them at all. "

"I had to disentangle him from his own shoelaces."

"My grandmother wore a beautiful pearl necklace to the family dinner. "

"Consider that we’ve had three major events and the year has hardly begun."

"The incapable student struggled to complete even the simplest assignments. "

"As everyone knew, he was capable of violence when roused."

"He felt relieved after he discharged his duty of watering the plants. "

"The leaky faucet in the kitchen is a problem that needs fixing. "

"Everyone in the class needs to bring their textbook to the first lecture. "

"The impossible of finishing the project by Friday became a reality when everyone worked late. "

"The complicated instructions on the new software difficult me from completing the project on time. "

"The insoluble residue from the coffee grounds made cleaning the filter difficult. "