insonorous, a. rare.
(ɪnsəʊˈnɔərəs, now freq. ɪnˈsɒnərəs)
[in-3.]
Not sonorous; giving a dull or muffled sound.
| 1795 Fortnight's Ramble 11 An insonorous voice exclaiming, Damn your day-lights, stop the coach! 1889 J. M. Robertson Ess. Crit. Meth. 75 The old music-room, with its straitened insonorous instruments. |