Incommunicative \In`com*mu"ni*ca*tive\, a. 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. -- {In`com*mu"ni*ca*tive*ly}, adv. -- {In`com*mu"ni*ca*tive*ness}, n. --Lamb. His usual incommunicativeness. --G. Eliot.