Synonym: evil, unfavorable, wrong. Antonym: good. Similar words: badly, a bad egg. Meaning: [bæd] 
n. that which is below standard or expectations as of ethics or decency. adj. 1. having undesirable or negative qualities 2. very intense 3. feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad') 4. (of foodstuffs) not in an edible or usable condition 5. feeling or expressing regret or sorrow or a sense of loss over something done or undone 6. not capable of being collected 7. below average in quality or performance 8. nonstandard 9. not financially safe or secure 10. physically unsound or diseased 11. capable of harming 12. characterized by wickedness or immorality 13. reproduced fraudulently 14. not working properly. adv. 1. with great intensity (`bad' is a nonstandard variant for `badly') 2. very much; strongly.
n. that which is below standard or expectations as of ethics or decency. adj. 1. having undesirable or negative qualities 2. very intense 3. feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad') 4. (of foodstuffs) not in an edible or usable condition 5. feeling or expressing regret or sorrow or a sense of loss over something done or undone 6. not capable of being collected 7. below average in quality or performance 8. nonstandard 9. not financially safe or secure 10. physically unsound or diseased 11. capable of harming 12. characterized by wickedness or immorality 13. reproduced fraudulently 14. not working properly. adv. 1. with great intensity (`bad' is a nonstandard variant for `badly') 2. very much; strongly. 
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1. He that spares the bad injures the good. 
2. Hope is a good breakfast, but a bad supper.
3. A bad thing never dies.
4. Behind bad luck comes good luck.
5. Bad workmen often blame their tools.
6. A good horse cannot be of a bad colour.
7. Many a good cow hath a bad calf.
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8. Praise makes good men better, and bad men worse.
9. A bad penny always turns up.
10. A bad padlock invites a picklock.
11. A bad workman quarrels with his tools.
12. Money is a good servant, but a bad master.
13. No man ever became thoroughly bad all at once.
14. A bad conscience is a snake in one's heart.
15. Fire and water are good servants, but bad masters.
16. A bad compromise is better than a good lawsuit.
17. No man ever became thoroughly bad at once.
18. There's no such thing as bad publicity.
19. Hard cases make bad law.
20. A bad beginning makes a bad ending.
21. Three removes are as bad as a fire.
22. Pardoning the bad is injuring the good.
23. Better be alone than in bad company.
24. Give a dog a bad name and hang him.
25. The receiver is as bad as the thief.
26. Bad money drives out good.
27. Many a good father hath but a bad son.
28. The good seaman is known in bad weather.
29. A bad bush is better than the open field.
30. Money is a good servant and a bad master.