Answer: uncommunicative

AnswerCrossword Clue
UNCOMMUNICATIVEReticent
UNCOMMUNICATIVEReserved; taciturn
uncommunicative(of a person) Unwilling to talk or impart information
uncommunicative(of something such as writing or art) Not conveying much or any meaning or sense
uncommunicativenot disposed to talk or impart information also INCOMMUNICATIVE