paralanguagenoun [ U ]
uk/ˈpær.əˌlæŋ.ɡwɪdʒ//ˈper.ə-/specializedthe ways in which people show what they mean other than by the words they use, for example by their tone of voice, or by making sounds with the breath:
The study of paralanguage deals with the non-verbal qualities of speech, which include pitch, amplitude, rate, and voice quality.
paralinguistic
adjective /ˌpær.ə.lɪŋˈɡwɪs.tɪk//ˌper.ə.lɪŋˈɡwɪs.tɪk/