nonoral
/ˌnɒnˈɔːrəl, -ɔːrəl/Definitions
1. adjective
relating to or communicated by means other than the mouth, such as writing or electronic signals
“The nonoral communication of the company’s new policies was handled by email and intranet.”
2. noun
a form of communication that does not involve the spoken word
“Nonoral communication is becoming increasingly important in the digital age.”