esoteric
Herculean
abstract
acroamatic
arcane
arduous
beclouded
blind
brutal
buried
civilized
close
clouded
complex
complicated
concealed
covered
covert
critical
cultivated
cultured
dark
deep
delicate
demanding
difficile
difficult
difficulty
eclipsed
educated
encyclopedic
erudite
exacting
farfetched
formidable
hairy
hard
hard-earned
hard-fought
heavy
hermetic
hid
hidden
high
hypothetical
ideal
in a cloud
abstrude
abstrusion
age-old
astronomical
cabalistic
contradictory
elementary
empirical
exhaustive
intricate
mathematical
metaphysical
mythological
obscure
philological
recondite
scholastic
sociological
transcendental
Bruce
Chartreuse
Duce
Luce
Seuss
Spruce
Zeus
abuse
boose
bruce
caboose
chartreuse
coos
deduce
deuce
diffuse
disabuse
disuse
duce
excuse
goose
hoose
induce
introduce
juice
loose
misuse
moose
mousse
noose
nous
obtuse
overproduce
produce
profuse
recluse
reduce
reintroduce
reproduce
reuse
seduce
sluice
spruce
truce
use
yous
clear
evident