Badly
Part of speech: adjective
Definition: ill, unwell
Part of speech: adverb
Definition: In a bad manner. Very much; to a great degree.
Example sentence: People say 'dream big,' that's kind of one of those motivational sayings, but I would dream hard, meaning I just wanted it so badly, I could feel it.
Poorly
Part of speech: adverb
Definition: in a poor manner
Part of speech: adjective
Definition: ill, unwell, sick
Example sentence: Brussels sprouts are unique creatures. When cooked poorly, they can give off a strongly sulfurous aroma that many find unpleasant. But if you can crack through that aroma and release the natural sweetness hiding underneath, then you're rewarded with one of the most delicious vegetables around.