Synonyms and related words :
absolute, apodictic, appointed, binding, bound, certain, clear, clear and distinct, clear as day, compulsory, conclusive, decided, decisive, definite, destined, determinate, devoted, dictated, doomed, fatal, fated, fateful, foredoomed, foreordained, imperative, in store, in the cards, indefeasible, ineluctable, ineludible, inescapable, inevasible, inexorable, inflexible, involuntary, irresistible, irrevocable, mandatory, marked, necessary, obligatory, ordained, perfectly sure, positive, predestined, predetermined, relentless, required, resistless, settled, sure, sure as death, sure as fate, sure-enough, TRUE, unambiguous, unavoidable, uncontrollable, undeflectable, unequivocal, unevadable, univocal, unmistakable, unpreventable, unstoppable, unyielding, written