1. [adv]  (`ill' is often used as a combining form) in a poor or improper or unsatisfactory manner; not well; "he was ill prepared"; "it ill befits a man to betray old friends"; "the car runs badly"; "he performed badly on the exam"; "the team played poorly"; "ill-fitting clothes"; "an ill-conceived plan"
2. [adv]  with unusual distress or resentment or regret or emotional display; "they took their defeat badly"; "took her father's death badly"; "conducted himself very badly at the time of the earthquake"
3. [adv]  unfavorably or with disapproval; "tried not to speak ill of the dead"; "thought badly of him for his lack of concern"
4. [adv]  in a disadvantageous way; to someone's disadvantage; "the venture turned out badly for the investors"; "angry that the case was settled disadvantageously for them"
5. [adv]  without skill or in a displeasing manner; "she writes badly"; "I think he paints very badly"
6. [adv]  to a severe or serious degree; "fingers so badly frozen they had to be amputated"; "badly injured"; "a severely impaired heart"; "is gravely ill"; "was seriously ill"
7. [adv]  very much; strongly; "I wanted it badly enough to work hard for it"; "the cables had sagged badly"; "they were badly in need of help"; "he wants a bicycle so bad he can taste it"
8. [adv]  with great intensity; "the injury hurt badly"; "the buildings were badly shaken"; (`bad' is a nonstandard variant for `badly' as in"it hurts bad" or"we need water bad")
9. [adv]  in a disobedient or naughty way; "he behaved badly in school"; "he mischievously looked for a chance to embarrass his sister"; "behaved naughtily when they had guests and was sent to his room"
10. [adv]  evilly or wickedly; "treated his parents badly"; "to steal is to act badly"

BADLY is a 5 letter word that starts with B.