There are 15 words that start with 'unbra'.
| unbrace | unbraid | unbrake |
| unbraced | unbraces | unbraids |
| unbraked | unbrakes | unbracing |
| unbraided | unbraking | unbranded |
| unbraiding | unbranched | unbracketed |
Note: These 15 words that start with 'unbra' are found from the USA & Canada version of the tournament Scrabble word list.