There are 18 8-letter words that start with 'impa'.
| impacted | impacter | impactor | impaints |
| impaired | impairer | impalers | impaling |
| impanels | imparity | imparked | imparted |
| imparter | impasses | impasted | impastes |
| impastos | impawned | ||
Note: These 18 8-letter words that start with 'impa' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with impas, impar, impal, impac, impai, impan, impat, impaw, impav.
6-letter words start with 'impa' (7)