What is another word for "involved"?

Roget's Thesaurus (1911) lists these synonyms for "involved": account, ambiguity, anagram, and, answer, answerable, arcanum, arrear, bad, bail, bill, book, borrow, borrower, call, capital, charade, charge, chargeable, check, concealed, confidential, constable, contract, conundrum, crabbed, crack, credit, crux, darkness, dead, debit, debitor, debt, debtor, deep, deeply, default, defaulter, deficit.