Dictionary
un•vo•cal
Pronunciation: (un-vō'kul), [key]—
adj.
1. not outspoken; reserved; not eloquent in speech; inarticulate.
2. not mellifluous, as the speaking voice.
3. not melodious; unmusical:
unvocal attempts at writing art songs. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.