9 letter words:
unheedful16,
7 letter words:
heedful14,
needful11,
unfeued11,
unheled11,
6 letter words:
defuel10,
dueful10,
fueled10,
unfeed10,
unhele9,
5 letter words:
elfed9,
feued9,
flued9,
heled9,
unfed9,
elude6,
endue6,
neeld6,
undee6,
undue6,
unled6,
4 letter words:
delf8,
ehed8,
feed8,
fend8,
feud8,
fled8,
fund8,
heed8,
held8,
hend8,
hued8,
enuf7,
feel7,
feen7,
flee7,
flue7,
fuel7,
heel7,
hele7,
hule7,
deen5,
dele5,
dene5,
duel5,
dule5,
dune5,
leed5,
lend5,
leud5,
lude5,
need5,
nude5,
unde5,
lune4,
3 letter words:
feh9,
def7,
duh7,
edh7,
fed7,
fud7,
elf6,
fee6,
fen6,
feu6,
flu6,
fun6,
hen6,
hue6,
hun6,
nef6,
dee4,
del4,
den4,
due4,
dun4,
eld4,
end4,
led4,
lud4,
ned4,
eel3,
een3,
ene3,
lee3,
leu3,
nee3,
ule3,
ulu3,
2 letter words:
ef5,
eh5,
fe5,
he5,
uh5,
de3,
ed3,
ee2,
el2,
en2,
ne2,
nu2,
un2,