un|com|mu|ni|ca|tive «UHN kuh MYOO nuh KAY tihv, -kuh tihv», adjective.
not giving out any information, opinions, or advice; talking little; disposed to silence; reserved; reticent. SYNONYM(S): taciturn.
–un´com|mu´ni|ca´tive|ness, noun.
Useful english dictionary. 2012.