in·com·mu·ni·ca·do 
/ˌɪnkəˌmju:nəˈkɑ:doʊ/ adjective
not used before a noun /ˌɪnkəˌmju:nəˈkɑ:doʊ/ adjective formal : not able to communicate with other people : in a situation or state that does not allow communication with other people
▪ The prisoner was held/kept incommunicado for six weeks. ▪ She remained incommunicado while working on her book.
▪ The prisoner was held/kept incommunicado for six weeks. ▪ She remained incommunicado while working on her book.
