oversevere UK /ˌəʊvəˈsɪˈvɪə/US /ˌəʊvəˈsɪˈvɪɹ/ adjective1 •(rare) Excessively severe.Companies, by often imposing oversevere tasks on their men, oblige them to use every subterfuge in order to meet the imjust exigencies of their employers. — 1817 formsmore oversevere · most oversevere