There are 14 13-letter words that start with 'unp'.
| unparasitized | unpasteurized |
| unperformable | unpicturesque |
| unprecedented | unpredictable |
| unpredictably | unpressurized |
| unpretentious | unproblematic |
| unprogressive | unpromisingly |
| unpublishable | unpunctuality |
Note: These 14 13-letter words that start with 'unp' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with unpr, unpa, unpe, unpl, unpu, unpi, unpo.
5-letter words start with 'unp' (3)