ᴏʙꜱᴛɪɴᴀᴛᴇ [ᴛʜᴇᴏᴅᴏʀᴇ ɴᴏᴛᴛ]
ob•sti•nate /ˈäbstənət/ adjective stubbornly refusing to change one's opinion or chosen course of action, despite attempts to persuade one to do so. "her obstinate determination to pursue a career in radio" similar: stubborn, headstrong, ᴛʜᴇᴏᴅᴏʀᴇ...