uncommunicative
US /ˌʌn.kəˈmjuː.nə.kə.t̬ɪv/
UK /ˌʌn.kəˈmjuː.nə.kə.t̬ɪv/

1.
peu communicatif, silencieux, réservé
not inclined to talk or give information; silent or reserved.
:
•
He became withdrawn and uncommunicative after the accident.
Il est devenu renfermé et peu communicatif après l'accident.
•
Her uncommunicative nature made it difficult to get to know her.
Sa nature peu communicative rendait difficile de la connaître.