D defs.my
Entry 1 sense Webster, 1913

Incommunicative

· In·com·mu·ni·ca·tive · IPA
01 a. Not communicative; not free or apt to impart to others in conversation; reserved; silent; as, the messenger was incommunicative; hence, not…
  1. 1.
    Not communicative; not free or apt to impart to others in conversation; reserved; silent; as, the messenger was incommunicative; hence, not disposed to hold fellowship or intercourse with others; exclusive.
    “The Chinese . . . an incommunicative nation.” — C. Buchanan.
    “His usual incommunicativeness.” G. Eliot.