Synonyms and related words :
actively, ardently, assiduously, bec et ongles, committedly, decidedly, decisively, decorously, demurely, determinedly, devotedly, devoutly, dingdong, down, exhaustively, fervently, fervidly, firmly, fixedly, for real, formally, gravely, grimly, hammer and tongs, heart and soul, heartily, heatedly, impassionedly, in all seriousness, in earnest, in good earnest, inflexibly, intensely, intently, like a bulldog, like a leech, obstinately, painstakingly, passionately, perfervidly, perseveringly, persistently, purposefully, relentlessly, resolutely, resolvedly, sedately, seriously, sincerely, singlemindedly, sober-mindedly, soberly, sobersidedly, solemnly, somberly, staidly, staunchly, steadfastly, steadily, tenaciously, thoroughly, thoughtfully, tooth and nail, unremittingly, unswervingly, unyieldingly, vehemently, wholeheartedly, with a will, with constancy, with total dedication, zealously,