Antonym: well. Similar words: deadly, bad, a bad egg, deadline, headline, rapidly, friendly, hardly any. Meaning: ['bædlɪ] 
adv. 1. to a severe or serious degree 2. (`ill' is often used as a combining form) in a poor or improper or unsatisfactory manner; not well 3. evilly or wickedly 4. in a disobedient or naughty way 5. with great intensity (`bad' is a nonstandard variant for `badly') 6. very much; strongly 7. without skill or in a displeasing manner 8. in a disadvantageous way; to someone's disadvantage 9. unfavorably or with disapproval 10. with unusual distress or resentment or regret or emotional display.
adv. 1. to a severe or serious degree 2. (`ill' is often used as a combining form) in a poor or improper or unsatisfactory manner; not well 3. evilly or wickedly 4. in a disobedient or naughty way 5. with great intensity (`bad' is a nonstandard variant for `badly') 6. very much; strongly 7. without skill or in a displeasing manner 8. in a disadvantageous way; to someone's disadvantage 9. unfavorably or with disapproval 10. with unusual distress or resentment or regret or emotional display. 
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211 The back of the car was badly dented in a collision.
212 The tanker is listing badly and liable to sink at any moment.
213 I felt like a voyeur visiting the war zone and seeing badly injured people being dragged from their bomb-shattered homes.
214 One of the door panels was badly damaged and had to be replaced.
215 Whether the book is well or badly written is immaterial - it has an important message.
216 "People round here dress so badly - except you, Justin, " she hastened to add.
217 I'm surprised at you behaving so badly - you ought to/should know better.
218 Her arm is so badly injured they will have to amputate.
219 Estate agents were badly hit by the slump in property prices.
220 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.
221 The concert was very badly organized. In fact, the whole thing was a real botch-up.
222 Being turned down for the job dented his pride quite badly.
223 The way he was shouting, you'd have thought he was badly hurt.
224 He behaved badly with impunity as he knew the teacher was weak.
225 If an animal is badly injured, often the kindest thing to do is to destroy it painlessly.
226 How could Julian call himself a friend and then let me down so badly?
227 He knew in his inmost heart that he was behaving badly.
228 Socks that are too tight can cause as much harm as badly fitting shoes.
229 She got badly spiked when one of the runners trod on her heel.
230 I felt so badly I had to telephone Owen to say I was sorry.
231 Her leg was so badly damaged that the doctors had to amputate it.
232 The prison service has been badly mismanaged in recent years.
233 It's hard to believe that he could treat his own flesh and blood so badly.
234 Things were going so badly - it was as if I'd been cursed.
235 He was badly hurt by the end of his marriage.
236 You're right to be annoyed - you've been treated very badly.
237 We will be flying 100 badly wounded civilians out of the battle zone tonight.
238 That was a chancy thing to do; you could have been badly injured.
238 Sentencedict.com try its best to collect and build good sentences.
239 The play was badly acted[sentencedict.com], besides being far too long.
240 The bush looked badly diseased, with black marks on all the leaves.
More similar words: deadly, bad, a bad egg, deadline, headline, rapidly, friendly, hardly any, allegedly, supposedly, reportedly, repeatedly, upwardly mobile.