Lewis & Short

ē-linguis, e, adj. [lingua].

  1. I. Lit., deprived of a tongue, Aus. Ep. 23, 14; Cassiod. Hist. Eccl. 6, 15.
  2. II. Transf.
    1. A. In gen., speechless, Cic. Fl. 10, 22; Liv. 10, 19 (with mutus); id. post Red. 3, 7 (with mutus and tacitus); Gell. 5, 1, 9.
    2. B. Pregn., without eloquence, Cic. Brut. 26, 100; Cels. praef. med.; Tac. Or. 36 fin. (opp. disertus).