unfailing
unflagging
unweariable
tirelessness
unweariably
wearilessly
no good
inutilitarian
weariless
tireless
inutility
garbageness
paunchless
flatty
drossy
tirelessly
not worth a cress
wheellessness
no-legged
shand
confineless
not worth a curse
not worth salt
goodless
indefatigableness
unsteerable
silent
indefatigability
as much use as a chocolate fireguard
nutil
unrideable
empty
frustraneous
unrunnable
good for nothing
good-for-nothing
imperviable
unwheeled
nonrunnable
wheelless
nonwheeled
waste of effort
fruitless
waste of energy
born tired
bejade
mannerless
sade
unpedalled
shvantz
nonportable
soleless
clawless
gaum
kill
oxygen thief
uncrashable
good-for-naught
tunelessness
goof-off
doodly
unclinging
unoccupiable
treadless
ne'er-do-well
undriven
Stepney
wear up
goldbrick
unkinked
wouldn't work in an iron lung
no-account
glebeless
zilch
overtire
nil-
nontrainable
dead
unpedaled
unsteered
Mother Hubbard
overfatigue
churn
overweary
lazy ass
limbless
defatigate
bonelessly
unproductive
untooled
duck egg
nonhinged
valueless
tyreless
aidless
pongo
zip
goose egg