There are 14 words that end with 'dful'.
aidful | handful | headful |
heedful | mindful | needful |
dreadful | proudful | regardful |
remindful | unheedful | unmindful |
unneedful | disregardful | |
Note: These 14 words that end with 'dful' are found from the USA & Canada version of the tournament Scrabble word list.