There are 9 words that start with 'feebl'.
| feeble | feebly |
| feebler | feeblest |
| feeblish | feebleness |
| feebleminded | feeblenesses |
| feeblemindedly | |
Note: These 9 words that start with 'feebl' are found from the USA & Canada version of the tournament Scrabble word list.