(adv.) Without weariness; without yielding to fatigue; persistently.

ardently assiduously carefully cautiously circumspectly considerately devotedly doggedly energetically faithfully fervently heedfully indefatigably industriously insistently laboriously lovingly loyally mindfully painstakingly patiently perseveringly persistently persistingly pertinaciously ploddingly regardfully relentlessly resolutely sedulously sloggingly solicitously strenuously tenaciously tenderly thoroughgoingly thoroughly thoughtfully tirelessly unabatingly unfalteringly unflaggingly unflinchingly unintermittingly uninterruptedly unrelentingly unremittingly unrestingly unsleepingly unsparingly unswervingly untiringly unwaveringly unwearyingly vehemently wearilessly with care with great care zealously