endophasic
/ˌɛndəˈfæsɪk/Definitions
1. adjective
Relating to or characteristic of endophasia, the inner speech or silent verbalizations that people make to themselves.
“The researcher studied the endophasic thoughts of participants in the experiment.”
2. noun
A person whose speech is predominantly inner or silent, rather than outward.
“The patient’s therapist helped him to become more endophasic in order to control his vocal outbursts.”