Com·pli·cate v. t. [imp. & p. p. Complicated; p. pr. & vb. n. Complicating.] To fold or twist together; to combine intricately; to make complex; to combine or associate so as to make intricate or difficult.
Nor can his complicated sinews fail. --Young.
Avarice and luxury very often become one complicated principle of action. --Addison.
When the disease is complicated with other diseases. --Arbuthnot.
adj : difficult to analyze or understand; "a complicated problem";
"complicated Middle East politics"