noun: impressive difficulty
Length: 13 letters
Scrabble value: 24
Words with Friends value: 23
Literati value: 18
TWL (USA): Found
SOWPODS (UK): Found
formidability
formidably
friability
floridity
formality
idiolatry
morbidity
myofibril
adroitly
dilatory
filariid
flatbrod
idolatry
lombardy
military
mobility
modality
molarity
morality
morbidly
rabidity
ability
airfoil
airlift
aliform
amyloid
aridity
bifilar
biliary
bimodal
broadly
dilator
dirtily
dyirbal
fibroid
fibroma
fimbria
florida
frailty
larotid
lombard
militia
mitford
mortify
mytilid
oilbird
orbital
tabloid
tardily
timidly
adrift
adroit
airily
bailor
biform
bioarm
bodily
botfly
bridal
byroad
daftly
datril
diatom
dimity
drably
drafty
fairly
family
fibril
firmly
floaty
florid
forbid
formal
format
foryml
friday
libido
malory
midair
midrib
milady
milord
mitral
modify
moirai
morbid
mortal
myrdal
myriad
ramify
ratify
ribald
tailor
taylor
tibial
tidily
tribal
trifid
trilby
trimly
abort
aditi
admit
aioli
alibi
aloft
ambit
amity
amort
arity
aroid
badly
baldr
baldy
balmy
barmy
bialy
bifid
bimli
biota
blair
blida
bloat
board
bolti
brady
braid
brail
broad
broil
daily
dairy
diary
dimly
dirty
dobra
doily
dolby
dormy
draft
drift
drily
fairy
filar
filmy
fiord
fitly
flair
flirt
float
flora
flory
foamy
foram
foray
forty
frail
idiom
idiot
iliad
italy
labor
laird
laity
larid
libra
libya
lidar
limbo
limit
loamy
lobar
lofty
lydia
madly
malti
malto
maori
marly
marti
mayor
mibit
mirid
mitra
modal
molar
moldy
moral
moray
motif
mylar
myoid
omiya
orbit
oriya
rabid
radio
ratio
riyal
roily
royal
tabor
tamil
tardy
tibia
tidal
tilia
timid
timor
tirol
toady
today
trail
triad
trial
tyrol
yibit
ably
abor
adit
afrl
afro
airt
airy
alir
alto
ambo
amir
amor
amoy
amyl
arid
aril
army
arty
atom
bail
bait
bald
bali
balm
bard
barf
bari
barm
bart
bida
bird
birl
biro
blat
blot
bmdo
boar
boat
body
boil
bola
bold
bolt
bota
brad
brat
bray
brim
brio
brit
brya
byrd
daft
dail
dali
dalo
dari
dart
dial
diam
diol
dior
dirt
dita
dolt
dorm
dory
drab
dram
dray
drib
fado
fail
fair
farm
faro
fart
fiat
film
firm
flab
flat
flay
flit
fmri
foal
foam
foil
fold
ford
form
fort
frat
fray
iamb
ibrd
idly
idol
idyl
iota
iyar
lady
laid
lair
lamb
lard
lari
liao
liar
lido
lifo
lift
liii
lima
limb
limo
lira
load
loaf
loam
loft
loir
lord
lory
lota
loti
lyra
maid
mail
mali
malt
maoi
mari
marl
mart
mary
mayo
mbit
miao
midi
mild
milo
milt
miri
miro
miry
moat
moil
mola
mold
molt
mrta
obit
oily
omit
orad
oral
orly
raft
raid
rail
rial
rift
rima
rimy
riot
road
roam
roil
rolf
roma
rota
rotl
tabi
taif
tail
taro
tidy
tiro
toad
toby
toda
tody
toil
tomb
tory
trad
tram
tray
trim
trio
troy
tyro
yafo
yard
ybit
ymir
abm
abo
aby
ado
afl
aft
aid
ail
aim
air
alb
ali
alt
amd
arb
arm
art
atf
atm
ayr
bad
bai
bam
bar
bat
bay
bid
bit
blt
bmi
bmr
boa
bod
bot
boy
bra
dab
dal
dam
dat
day
dba
dia
dim
dit
doi
dol
dot
dry
fab
fad
fao
far
fat
fay
fbi
fda
fdr
fib
fir
fit
fly
fob
fri
fry
fto
ida
idf
ido
iii
ilo
imf
imo
iol
ira
lab
lad
lam
lao
lat
lay
lid
lii
lir
lit
lob
lot
ltm
mad
mao
mar
mat
may
mba
mbd
mdi
mfa
mib
mid
mil
mit
moa
mob
mod
mol
mot
mrd
mri
mya
oaf
oar
oat
obi
oft
oil
ola
old
olm
omb
orb
rad
raf
ram
rat
ray
rbi
rfd
rib
rid
rim
rio
rob
rod
roi
rom
rot
rya
tab
tad
tai
tam
tao
tar
tay
tia
tib
tod
tom
tor
toy
trf
trm
try
tyr
yam
yib
yid
yob
ab
ad
ai
al
am
ar
at
ba
bd
bi
bm
br
by
da
db
dl
dm
do
dy
fa
fl
fm
fo
fr
ft
ia
id
ii
il
io
ir
it
la
lb
lf
li
lm
lr
ma
mb
md
mf
mi
ml
mo
mr
mt
ob
od
or
ra
rb
rf
ri
ro
ta
tb
ti
tl
tm
yb
yi
yr
a
b
d
f
i
l
m
o
r
t
y
formicarius
formicary
formicate
formication
formicidae
formidable
formless
formlessly
formol