ppl. a.2 [UNDER-1 10 a.] Defective in tone.
1849. Athenæum, 3 Nov., 1114/1. Its production appeared to be of an extemporaneous character,—much in it was undertoned.
1888. G. Wilson, Centen. Confer. Missions, I. 96 The influence of a faithless under-toned Missionary on the Church at home is appalling.
