There are 17 words that start with 'unpi'.
| unpin | unpick |
| unpile | unpins |
| unpicks | unpiled |
| unpiles | unpicked |
| unpiling | unpinned |
| unpitied | unpitted |
| unpicking | unpierced |
| unpinning | unpitying |
| unpicturesque | |
Note: These 17 words that start with 'unpi' are found from the USA & Canada version of the tournament Scrabble word list.