unimpressibly (adverb) obstinately: stubbornly
Sinonime: bullheadedly, contumaciously, determinedly, doggedly,
firmly, fixedly, headstrongly, indomitably, inflexibly, intractably, mulishly, obdurately, opinionatedly, persistently, pertinaciously, pigheadedly, recalcitrantly, resistantly, resolutely, resolvedly, staunchly, steadfastly, stolidly, tenaciously, unamenably, unflinchingly, unimpressibly, unreasonably, unreasoningly, unrelentingly, unwaveringly, unyieldingly, willfully
Antonime: docilely, graciously, obediently