Lewis & Short

tinnŭlus, a, um, adj. [tinnio], ringing, tinkling, shrill-sounding (poet. and in post-Aug. prose).

  1. I. Lit.: sistra, Ov. P. 1, 1, 38: aera, id. M. 4, 393: chordae, Sen. Troad. 833: fistula, Calp. Ecl. 4, 74: vox, Cat. 61, 13; Pompon. ap. Macr. S. 6, 4 (with tenuis): illic cymbala tinnulaeque Gades, i. e. the shrill noise of the Gaditan maidens, Stat. S. 1, 6, 71 (cf. Juv. 11, 162).
  2. II. Transf., of speakers: (rhetores) tumidi et corrupti et tinnuli, jingling, Quint. 2, 3, 9: verba, Hier. Ep. 143, 2; cf. tinnitus, II.