consuetudinal UK /ˌkɒnswəˈtjuːdɪnəl/US /ˌkɑnswəˈtudɪnəl/ adjective2 •According to custom; customary; usual. •Synonym of habitual.The loss of ye, hath, unto, and a consuetudinal use of be[.] — 1985 formsmore consuetudinal · most consuetudinal