Adverb
1. badly
2. badly
Adjective
1. bad
2. atrocious, abominable, awful, dreadful, painful, terrible, unspeakable, corked, corky, deplorable, distressing, lamentable, pitiful, sad, sorry, fearful, frightful, terrible, hard, tough, hopeless, horrid, icky, crappy, lousy, rotten, shitty, stinking, stinky, incompetent, unskilled, mediocre, mischievous, naughty, negative, poor, pretty, rubber, no-good, severe, swingeing, unfavorable, unsuitable, ill, uncool, disobedient, evil, wicked, unfavorable, unfavourable, worse, worst, big
3. intense, tough
4. uncomfortable, spoiled
5. spoilt, stale, uncollectible
6. invalid, inferior
7. nonstandard
8. insecure
9. risky, high-risk, speculative, unsound, unfit
10. unsound, unhealthy, harmful
11. sorry
12. unhappy, immoral
13. evil, wicked, forged
14. counterfeit, imitative, defective
Noun
1. malfunctioning, nonfunctional, badness
1. quality