There are 10 words that start with 'unper'.
| unperson | unperfect |
| unpersons | unperceived |
| unperformed | unpersuaded |
| unperturbed | unperceptive |
| unpersuasive | unperformable |
Note: These 10 words that start with 'unper' are found from the USA & Canada version of the tournament Scrabble word list.