The noun bad has 1 sense (first 1 from tagged texts)
1. (2) bad, badness -- (that which is below standard or expectations as of ethics or decency; "take the bad with the good")
Overview of adj bad
The adj bad has 14 senses (first 4 from tagged texts)
1. (51) bad -- (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")
2. (3) bad, big -- (very intense; "a bad headache"; "in a big rage"; "had a big (or bad) shock"; "a bad earthquake"; "a bad storm")
3. (3) bad, tough -- (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")
4. (1) bad, spoiled, spoilt -- ((of foodstuffs) not in an edible or usable condition; "bad meat"; "a refrigerator full of spoilt food")
5. regretful, sorry, bad -- (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")
6. bad, uncollectible -- (not capable of being collected; "a bad (or uncollectible) debt")
7. bad -- (below average in quality or performance; "a bad chess player"; "a bad recital")
8. bad -- (nonstandard; "so-called bad grammar")
9. bad, risky, high-risk, speculative -- (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")
10. bad, unfit, unsound -- (physically unsound or diseased; "has a bad back"; "a bad heart"; "bad teeth"; "an unsound limb"; "unsound teeth")
11. bad -- (capable of harming; "bad habits"; "bad air"; "smoking is bad for you")
12. bad, immoral -- (characterized by wickedness or immorality; "led a very bad life")
13. bad, forged -- (reproduced fraudulently; "like a bad penny..."; "a forged twenty dollar bill")
14. bad, defective -- (not working properly; "a bad telephone connection"; "a defective appliance")
Overview of adv bad
The adv bad has 2 senses (first 2 from tagged texts)
1. (1) badly, bad -- (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")
2. (1) badly, bad -- (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")