There are 16 words that start with 'unab'.
| unable | unabated | unabused |
| unabashed | unabating | unabetted |
| unabiding | unabjured | unaborted |
| unabraded | unabusive | unabatedly |
| unabridged | unabsorbed | unabashedly |
| unabsorbent | ||
Note: These 16 words that start with 'unab' are found from the USA & Canada version of the tournament Scrabble word list.