There are 13 words that start with 'unrec'.
| unrecorded | unreceptive |
| unreclaimed | unrecovered |
| unrecognized | unreconciled |
| unrecyclable | unreclaimable |
| unrecoverable | unrecognizable |
| unrecognizably | unreconcilable |
| unreconstructed | |
Note: These 13 words that start with 'unrec' are found from the USA & Canada version of the tournament Scrabble word list.