Synonyms and related words :
ardently, arduously, assiduously, bec et ongles, carefully, cautiously, circumspectly, considerately, devotedly, diligently, doggedly, effortfully, energetically, faithfully, fervently, hammer and tongs, hard, heart and soul, heedfully, indefatigably, insistently, laboriously, lovingly, loyally, manfully, mindfully, operosely, painstakingly, patiently, perseveringly, persistently, persistingly, pertinaciously, ploddingly, regardfully, relentlessly, resolutely, sedulously, sloggingly, solicitously, strenuously, tenaciously, tenderly, the hard way, thoroughgoingly, thoroughly, thoughtfully, tirelessly, toilsomely, tooth and nail, unabatingly, unfalteringly, unflaggingly, unflinchingly, unintermittingly, uninterruptedly, unrelentingly, unremittingly, unrestingly, unsleepingly, unsparingly, unswervingly, untiringly, unwaveringly, unwearyingly, vehemently, wearilessly, with a will, with care, with effort, with great care, zealously