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Meaning of unvocal

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.