unisonant

[Lat. unus = one, and sonans, pr. par. of so no to sound.] Being in unison; hav. ing the same degree of gravity or acutene . unis-o-nous, a. [UNISON.] 1. Sounding alone; without harmony. "These apt notes (to sing the Psalms with all) were about 40 tunes of one part only, and in one unisonous key."- Warton : Hist . Eng . Poetry , i. 171. 2. Being in unison; having the same sound or pitch.