Synonyms for Badly (same or very similar meaning)
WordNet sense 1 (in a disobedient or naughty way):
mischievously, naughtily
WordNet sense 2 (with great intensity (`bad' is a nonstandard variant for `badly')):
bad
WordNet sense 3 (to a severe or serious degree):
gravely, seriously, severely
WordNet sense 4 (in a disadvantageous way; to someone's disadvantage):
disadvantageously
WordNet sense 5 (unfavorably or with disapproval):
ill
WordNet sense 6 ((`ill' is often used as a combining form) in a poor or improper or unsatisfactory manner; not well):
poorly
From the ODE community, based on WordNet
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