antidinic
/ˌæntɪˈdɪnɪk/ or /anˌtɪˈdɪnɪk/ (English), /ɑ̃.ti.di.nik/ (French)
Definitions
1. adjective
Relating to or characteristic of a day preceding a day of rest, especially a Sunday
“The antidinic markets are usually smaller than those on regular days.”
2. noun
A day preceding a day of rest, especially a Sunday
“He usually attends church on the antidinic.”