Synonyms for Obdurately:

• adv.

  •firmly (adverb)
  • obdurately,
  • resolutely,
  • unchangeably,
  • constantly,
  • strictly,
  • perseveringly,
  • adamantly,
  • intently.
  •obstinately (adverb)
  • Resolvedly,
  • determinedly,
  • unflinchingly,
  • indomitably,
  • unreasonably,
  • unamenably,
  • unimpressibly,
  • pigheadedly,
  • recalcitrantly,
  • bullheadedly,
  • opinionatedly,
  • resistantly,
  • unreasoningly.

• Other synonyms:

  •stubbornly
  • intransigently.
  •Other relevant words:
  • immovably,
  • cold-fistedly,
  • rigidly,
  • unrelentingly,
  • toughly,
  • grimly,
  • impenitently,
  • pitilessly,
  • rockily,
  • headstrongly,
  • perversely,
  • ruthlessly,
  • harshly,
  • relentlessly,
  • heartlessly,
  • inflexibly,
  • severely,
  • stiffly,
  • with difficulty,
  • Unbendingly,
  • stonily,
  • firmly,
  • unyieldingly,
  • dourly,
  • unfeelingly,
  • wilfully,
  • uncompromisingly,
  • callously,
  • contrarily,
  • fixedly,
  • waywardly,
  • intractably,
  • inexorably,
  • cruelly,
  • unrepentantly,
  • unsympathetically,
  • hardly,
  • Incorrigibly,
  • contumaciously,
  • rigorously,
  • austerely,
  • willfully,
  • sternly.

Antonyms for Obdurately:

• adv.

  • firmly
    weakly, Waveringly, indefinitely, Changeably.
  • obstinately
    graciously, docilely, obediently.