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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241. They pick the pears over and threw out the bad ones.
242. The bad language in that play overstepped the limits/boundaries of what ought to be allowed on television.
243. The good in him was a constant variance with the bad.
244. Jean was extremely superstitious and believed the colour green brought bad luck.
245. The game was played out althongh the light was bad.
246. Mother warned the boys not to associate with bad companions.