bullheadedness, doggedness, hardheadedness, intransigence, mulishness, obduracy, obdurateness, obstinacy, obstinateness, opinionatedness, pertinaciousness, pertinacity, pigheadedness, stubbornness, willfulness;
adamancy (also adamance), determination, implacability, inexorability, inflexibility, inveteracy, perseverance, persistence, persistency, relentlessness, resolve, single-mindedness, steadfastness, stick-to-itiveness, tenaciousness, tenacity;
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