(adv.) In a resolute manner; with fixed purpose; boldly; firmly; steadily; with perseverance.

assiduously audaciously bec et ongles boldly bravely bulldoggishly chivalrously committedly courageously daringly decidedly decisively determinedly devotedly diligently doggedly doughtily earnestly faithfully fearlessly firmly fixedly gallantly gamely gutsily hammer and tongs hardily heart and soul heroically in all seriousness in earnest in good earnest indefatigably industriously inflexibly insistently intrepidly knightly like a bulldog like a leech like a man like a soldier loyally obstinately patiently perseveringly persistently persistingly pertinaciously ploddingly pluckily purposefully relentlessly resolvedly sedulously seriously sincerely singlemindedly sloggingly spunkily stalwartly staunchly steadfastly steadily stoutly tenaciously tirelessly tooth and nail unabatingly unfalteringly unfearfully unfearingly unflaggingly unflinchingly unintermittingly uninterruptedly unrelentingly unremittingly unrestingly unsleepingly unswervingly untiringly unwaveringly unwearyingly unyieldingly valiantly valorously wearilessly wholeheartedly with a will with constancy with total dedication yeomanly