not vocal or oral; not involving the voice; (of music) not involving or written for the voice; instrumental
2.
(of a person or group of people) not having a voice; not vocal or outspoken; not loud or voluble in speech; not eloquent
unvocal in American English
(unˈvoukəl)
adjective
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
Word origin
[1765–75; un-1 + vocal]This word is first recorded in the period 1765–75. Other words that entered Englishat around the same time include: bilateral, bonus, civilization, copperhead, statementun- is a prefix meaning “not,” freely used as an English formative, giving negative oropposite force in adjectives and their derivative adverbs and nouns (unfair; unfairly; unfairness; unfelt; unseen; unfitting; unformed; unheard-of; un-get-at-able), and less freely used in certain other nouns (unrest; unemployment)