Here are some words that describe the bad and worst situations in Karachi:

*Bad Situations:*

1. Chaotic
2. Congested
3. Polluted
4. Lawless
5. Unhygienic
6. Overcrowded
7. Traffic-clogged
8. Crime-ridden
9. Dilapidated
10. Neglected

*Worst Situations:*

1. Catastrophic
2. Calamitous
3. Devastating
4. Abysmal
5. Ghastly
6. Horrific
7. Appalling
8. Dire
9. Desperate
10. Hopeless

Some phrases that describe the worst situations in Karachi:

- "A city in shambles"
- "A metropolis on the brink of collapse"
- "A urban nightmare"
- "A city plagued by chaos and anarchy"
- "A metropolis struggling to survive"

Note: These words and phrases are not meant to perpetuate negative stereotypes about Karachi, but rather to acknowledge the challenges and difficulties faced by the city and its residents.