adj: incapable of being overcome, challenged or refuted; "an impregnable argument"; "impregnable self-confidence"
Length: 12 letters
Scrabble value: 24
Words with Friends value: 31
Literati value: 18
TWL (USA): Found
SOWPODS (UK): Found
inexpugnable
enabling
expiable
nibelung
paneling
plebeian
abilene
anguine
beguile
beguine
belgian
benelux
bengali
biplane
blueing
enplane
eugenia
euglena
explain
expunge
genuine
guanine
guinean
ingenue
leaning
leaping
lineage
pauline
pauling
pealing
peeling
penguin
pinnule
alpine
annexe
bailee
baleen
bangle
bangui
beagle
beanie
beigel
beluga
bengal
benign
bennie
bingle
blixen
bluing
bungee
bungle
enable
engine
eupnea
genial
genipa
guinea
gunnel
inguen
lagune
league
linage
lineup
lingua
lungen
lupine
nebula
nebule
nepali
ningal
nubian
nubile
paigle
paling
peeing
pelage
penial
penile
pineal
plague
plunge
puebla
puglia
unable
abele
agene
agile
albee
algin
alien
align
aline
anele
angel
angle
anile
annex
annul
auxin
axile
bagel
begin
beige
being
belau
belie
benin
benne
benni
bilge
binge
blain
bleep
bling
bugle
bulge
eagle
eigen
ennui
exile
expel
gable
gabun
galen
genie
genip
ginep
glaux
glean
gleba
glebe
glenn
guile
inane
inula
lange
lapin
lenin
liege
ligan
ligne
linen
linux
lunge
lungi
lupin
nepal
nguni
nubia
paige
paine
panel
pauli
paxil
penal
penne
penni
pilau
pilea
pinna
pixel
plage
plain
plane
plebe
pugin
pulex
unlax
unpin
abel
able
agee
agni
ague
alee
alep
anil
anne
anpu
apex
axil
axle
bail
bale
bali
bane
bang
bean
beau
beep
bile
bine
blae
bleu
blip
blue
buna
bung
elan
elbe
elia
gael
gain
gale
gape
gaul
gean
gene
genu
gibe
gila
glee
glen
glia
glib
glue
guan
guib
gula
gulp
ibex
iglu
ilex
inga
inge
inla
lane
lean
leap
lena
lien
lieu
line
ling
luba
lube
luge
luna
lung
luxe
nabu
nagi
nail
nape
napu
neap
nebe
nebn
neel
nepa
nile
nina
nine
nipa
nung
page
pail
pain
pale
pali
pane
pang
paul
peag
peal
pean
peba
peel
peen
penn
peul
pile
pine
ping
plan
plea
pleb
plug
pula
pule
pung
ugli
ulex
ulna
unai
unix
xian
age
ail
ain
aix
alb
ale
ali
alp
ane
ang
ani
anu
ape
aug
axe
bag
bai
ban
bap
bee
beg
bel
ben
big
bin
bpi
bug
bun
ebn
eeg
eel
eib
ela
eln
ene
enl
epa
epi
gab
gal
gap
geb
gee
gel
gen
gia
gib
gin
gip
gnp
gnu
gpa
gui
gun
iga
ige
ilx
inn
ixl
lab
lag
lan
lap
lax
lea
lee
leg
lei
leu
lgb
lie
lin
lip
lpn
lug
lux
lxi
nab
nag
nan
nap
nbe
neb
nee
nga
ngb
ngu
nib
nil
nip
nix
nlp
nne
npa
nub
nun
pal
pan
pax
pea
pee
peg
pei
pel
pen
pia
pib
pie
pig
pin
pix
pub
pug
pul
pun
xli
ab
ag
ai
al
an
au
ax
ba
be
bi
ea
eb
ee
el
en
eu
ex
ga
gb
ge
gi
gp
gu
ia
ie
ig
il
in
ip
ix
la
lb
le
li
lp
lu
lx
na
nb
ne
ng
ni
np
nu
pa
pb
pe
pi
pu
px
un
up
xe
xi
xl
a
b
e
g
i
l
n
p
u
x
inexplicit
inexplicitness
inexpressible
inexpressive
inexpressively
inexpungeable
inexpungible
inextensible
inexterminable
inextinguishable