Definition of "non-verbal"

non-verbal

/ˌnɒnˈvɜː.bl̩/

adjective
not comparable
1. (of communication) In a form other than written or spoken words, such as gestures, facial expressions or body language.
2. (grammar, somewhat rare) Of or relating to a word that belongs to any part of speech other than that of verbs
  Quotations
  In the Moroccan dialect of Meknès, verbal negation is by means of the circumfix ma...-š, as in (15), while nonverbal negation is primarily by means of invariable ma-ši before the nonverbal predicate, as in (16).
  1991, Bernard Comrie, “On the Importance of Arabic to General Linguistic Theory”, in Bernard Comrie, Mushira Eid, editors, Perspectives on Arabic Linguistics III: Papers from the Third Annual Symposium on Arabic Linguistics, John Benjamins Publishing Company, page 15
  Negative prefix in Russian is a distinctive feature of nonverbal parts of speech, namesly, nouns (even those that do not denote situations, e.g. 3a), adjectives (3b), and adverbs (3c): […]
  2009, Anna Pazelskaya, “Three Kinds of Event Nominal Negation in Russian”, in Peter Bosch, David Gabelaia, Jérôme Lang, editors, Logic, Language, and Computation: 7th International Tbilisi Symposium, Springer, page 25
3. (pathology) Unable to speak.
noun
plural non-verbals
1. A sound, gesture, etc. that is not a word.