uncommunicative

uncommunicative /ˌʌnkəˈmjuːnəˌkeɪtɪv/ /ˌʌnkəˈmjuːnəkətɪv/ adjective
uncommunicative
/ˌʌnkəˈmjuːnəˌkeɪtɪv/ /ˌʌnkəˈmjuːnəkətɪv/
adjective
Britannica Dictionary definition of UNCOMMUNICATIVE
[more uncommunicative; most uncommunicative]
: not tending or liking to talk or give out information