There are 10 words that start with 'impec'.
| impeccant | impeccable |
| impeccably | impecunious |
| impeccability | impecuniosity |
| impecuniously | impeccabilities |
| impecuniosities | impecuniousness |
Note: These 10 words that start with 'impec' are found from the USA & Canada version of the tournament Scrabble word list.