Lustily

Adverb

 * 1) In a lusty manner.

Thesaurus
actively, aloud, animatedly, briskly, con brio, deafeningly, energetically, firmly, forcefully, forcibly, forte, fortemente, fortissimo, heartily, imperviously, impregnably, in full cry, intensely, invincibly, invulnerably, irresistibly, keenly, loud, loudly, mightily, noisily, powerfully, pungently, resistantly, resoundingly, ringingly, robustly, ruggedly, soundly, spiritedly, stalwartly, staunchly, stoutly, strenuously, strongly, sturdily, unyieldingly, uproariously, vigorously, vivaciously, with pep, zestfully