taciturn

taciturn
adj.
P. κρυψίνους (Xen.).
Silent: V. σιωπηλός, σῑγηλός.

taciturn: tăcĭturnus (mostly poet.: once in Cic.: no superl. or adv.): because they saw him always sombre and t., quia tristem semper, quia t. videbant, Cic. Sest. 9, 21: t. obstinacy, t. obstinatio, Nep. Att. 22, 2: a t. man, Harpocrates (prop. the god of silence), Catul. 102, 4.