All of the various things I do I love doing, and occasionally I find them tortuous.
In 2011, after tortuous negotiations, a deal was struck for $1.2 trillion in spending cuts over 10 years.
The Quetta Shura official says the negotiations with the French were tortuous.
tortuous tor·tu·ous (tôr'chōō-əs)
Having many turns; winding or twisting.