| Answer | Crossword Clue |
|---|---|
| NOCANDO | "That's just impossible" |
| CANTBE | "That's impossible!" |
| NOCANDO | "Sorry, that's impossible" |
| NOCANDO | "Sorry, that's impossible!" |
| ICANNOT | "That's impossible for me" |
| ICANT | 'That's impossible for me' |
| LIGHTSPEED | Velocity that's impossible to attain |
| GOOGOLPLEX | Number that's physically impossible to write out in standard form |
