imperative

authoritative binding burning clamant command commands compelling compulsory crucial decisive dictatorial dire direst dogmatic dominant domineering essential ethics ethics/ethic exigent imperious important importunate indispensable insistent instant irresistible life-and-death mandate mandates mandatory more crucial more dominant more necessary more pressing more required more required more requisite more urgent most compelling most crucial most pressing most required most required most requisite most urgent most vital must necessary necessity needful obligatory overbearing peremptory prerequisite prerequisite prerequisites pressing required required/requisite requirement requirement/requisite requisites rightfulness rightness state states strategic urgent vital