Synonyms and related words :
absolute, absolutist, absolutistic, acid, acute, allegiance, arbitrary, aristocratic, arrogant, ascendant, assigned task, authoritarian, authoritative, authorized, autocratic, basic, behest, bidding, binding, biting, bossy, bounden duty, burden, burning, business, call of duty, canon, case of need, charge, choiceless, claimed, clamant, clamorous, clothed with authority, coactive, code, command, commanding, commandment, commitment, compelling, competent, compulsatory, compulsive, compulsory, conclusive, conditional, consequential, considerable, constraining, controlling, convention, corrosive, critical, crucial, crying, cutting, de rigueur, decisive, decretal, decretive, decretory, dedication, deference, demanded, despotic, devoir, devotion, dictate, dictated, dictating, dictation, dictatorial, dictum, dire necessity, direct order, directive, dogmatic, dominant, domineering, driving, duly constituted, duties and responsibilities, duty, effective, eminent, empowered, entailed, essential, ethics, ex officio, exigence, exigency, exigent, fealty, feudal, final, forceful, forcible, form, formula, fundamental, general principle, golden rule, governing, great, grinding, guideline, guiding principle, gutsy, hard-and-fast, harsh, hegemonic, hegemonistic, hest, high-handed, high-pressure, high-priority, homage, immediacy, imperativeness, imperial, imperious, important, importunate, imposed, impressive, incisive, indicative, indispensable, inevitable, influential, insistent, instant, instructive, involuntary, irresistible, irrevocable, jussive, law, leading, line of duty, lordly, loyalty, magisterial, magistral, mandated, mandating, mandatory, masterful, matter of necessity, maxim, mighty, mission, mitzvah, mode, momentous, monocratic, mood, moral, mordant, must, necessary, necessitous, nervous, norm, obligating, obligation, obligative, obligatory, official, onus, oppressive, optative, order, ordering, ordinance, ought, overbearing, overruling, penetrating, peremptory, permissive, piercing, pivotal, place, pleasure, poignant, potent, potential, powerful, preceptive, predicament, preeminent, prerequisite, prescript, prescriptive, pressing, pressingness, pressure, prestigious, principium, principle, prominent, puissant, punchy, ranking, regulation, repressive, required, requisite, respect, restraining, rubric, rule, ruling, say-so, self-imposed duty, senior, sensational, settled principle, severe, sinewed, sinewy, slashing, special order, standard, stern, strict, striking, strong, subjunctive, substantial, superior, suppressive, supreme, telling, tenet, totalitarian, trenchant, tyrannical, tyrannous, ultimate, urgency, urgent, urgent need, vigorous, vital, weighty, will, without appeal, without choice, word, word of command, working principle, working rule