Lewis & Short

lāmentābĭlis, e, adj. [lamentor], mournful, lamentable (class.).

  1. A. Full of sorrow, expressing sorrow: afflictus et jacens, et lamentabili voce deplorans, Cic. Tusc. 2, 13, 32: carmen, Stat. S. 5, 3, 1.
  2. B. Causing sorrow, deplorable: funera sumptuosa et lamentabilia, Cic. Leg. 2, 25, 64: regnum, Verg. A. 2, 4: tributum, Ov. M. 8, 263.