inexorable inexorable /ˌɪˈnɛksɝəbəl/

adjective

1. () Impervious to pleas, persuasion, requests, reason  ( adamantine , intransigent , unbudgeable , adamant , inexorable )
   impervious to pleas, persuasion, requests, reason
    He is adamant in his refusal to change his mind
   he is adamant in his refusal to change his mind
    Cynthia was inexorable; she would have none of him
   Cynthia was inexorable; she would have none of him
    An intransigent conservative opposed to every liberal tendency
   an intransigent conservative opposed to every liberal tendency
   
2. () Not to be placated, appeased or moved by entreaty  ( unappeasable , unforgiving , unrelenting , grim , inexorable , relentless , stern )
   not to be placated, appeased or moved by entreaty
    Grim determination
   grim determination
    Grim necessity
   grim necessity
    Russia's final hour, it seemed, approached with inexorable certainty
   Russia's final hour, it seemed, approached with inexorable certainty
    Relentless persecution
   relentless persecution
    The stern demands of parenthood
   the stern demands of parenthood