bad in WordNet English dictionary

1. that which is below standard or expectations as of ethics or decency
   "take the bad with the good"
   bad  badness 
   

1. having undesirable or negative qualities
   "a bad report card"; "his sloppy appearance made a bad impression"; "a bad little boy"; "clothes in bad shape"; "a bad cut"; "bad luck"; "the news was very bad"; "the reviews were bad"; "the pay is bad"; "it was a bad light for reading"; "the movie was a bad choice"
   bad 
   
2. feeling or expressing regret or sorrow or a sense of loss over something done or undone
   "felt regretful over his vanished youth"; "regretful over mistakes she had made"; "he felt bad about breaking the vase"
   regretful  sorry  bad 
   
3. reproduced fraudulently
   "like a bad penny..."; "a forged twenty dollar bill"
   bad  forged 
   
4. characterized by wickedness or immorality
   "led a very bad life"
   bad 
   
5. capable of harming
   "bad air"; "smoking is bad for you"
   bad 
   
6. below average in quality or performance
   "a bad chess player"; "a bad recital"
   bad 
   
7. very intense
   "a bad headache"; "in a big rage"; "had a big (or bad) shock"; "a bad earthquake"; "a bad storm"
   bad  big 
   
8. not capable of being collected
   "a bad (or uncollectible) debt"
   bad  uncollectible 
   
9. not working properly
   "a bad telephone connection"; "a defective appliance"
   bad  defective 
   
10. nonstandard
    "so-called bad grammar"
    bad 
    
11. (of foodstuffs) not in an edible or usable condition
    "bad meat"; "a refrigerator full of spoilt food"
    bad  spoiled  spoilt 
    
12. feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad')
    "my throat feels bad"; "she felt bad all over"; "he was feeling tough after a restless night"
    bad  tough 
    
13. physically unsound or diseased
    "has a bad back"; "a bad heart"; "bad teeth"; "an unsound limb"; "unsound teeth"
    bad  unfit  unsound 
    
14. not financially safe or secure
    "a bad investment"; "high risk investments"; "anything that promises to pay too much can't help being risky"; "speculative business enterprises"
    bad  risky  high-risk  speculative 
    

1. 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"
   badly  bad  badly  bad 
   
2. with great intensity (`bad' is a nonstandard variant for `badly')
   "the injury hurt badly"; "the buildings were badly shaken"; "it hurts bad"; "we need water bad"
   badly  bad  badly  bad