Antonyms for Badly (opposite meaning)
WordNet sense 1 (with skill or in a pleasing manner):
wellWordNet sense 2 (in a manner affording benefit or advantage):
advantageouslyWordNet sense 3 ((often used as a combining form) in a good or proper or satisfactory manner or to a high standard (`good' is a nonstandard dialectal variant for `well')):
goodFrom the ODE community, based on WordNetadd/edit