lengthily
time out of mind
ages
blue moon
grip
donkey's
age
prolongedly
eon
aeon
long ass
longways
light year
lengthy
years
coon's age
crow's age
forever
hot minute
lifetime
long as one's arm
until the cows freeze over
overlong
until the cows come home
hyperextended
eternity
long-span
far
month of Sundays
enduring
abiding
long time
imperishable
ultralong
superlong
longsomely
forever and a day
donkey's ears
donkey's years
yonks
as long as
lengthsome
inveterately
at length
sesquipedalian
no end
longirostrate
stretch
any more
long
dog's age
period
long-pending
mecocephalic
sesquipedalianism
extralong
long-drawn-out
long-drawn
intercalary
perdurable
durable
time immemorial
indestructible
undestroyable
deep
macro-
long run
dolicho-
longwise
yoinks
time-consumingly
long-range
geographically challenged
advanced
longform
go long
for the long haul
ripe
overquickly
indefinitely
longitudinal
montante
with ages
old-line
anciently
long haul
country mile
cycle
eudemic
prolonged
long-distance