Synonyms of inexorable

1. grim, inexorable, relentless, stern, unappeasable, unforgiving, unrelenting, implacable (vs. placable): usage: not to be placated or appeased or moved by entreaty; "grim determination"; "grim necessity"; "Russia's final hour, it seemed, approached with inexorable certainty"; "relentless persecution"; "the stern demands of parenthood"
2. adamant, adamantine, inexorable, intransigent, inflexible (vs. flexible): usage: impervious to pleas, persuasion, requests, reason; "he is adamant in his refusal to change his mind"; "Cynthia was inexorable; she would have none of him"- W.Churchill; "an intransigent conservative opposed to every liberal tendency"