adrift
afloat
aimless
desultory
directionless
planless
rudderless
undirected
worthless
bootless
casual
causeless
chance
designless
discursive
disorganized
driftless
dysteleological
empty
endless
feckless
fustian
garbled
good-for-nothing
haphazard
hit-or-miss
idler
importless
impotent
inane
indiscriminate
ineffective
ineffectual
inexplicable
insignificant
intentionless
irregular
meaningless
mindless
no go
nonconnotative
nondenotative
nonsensical
null
objectless
of no use
phatic
pointless
promiscuous
purportless
rambling
random
scrambled
senseless
stochastic
apathetic
frivolous
fruitless
impracticable
inattentive
incoherent
irrational
needless
tiresome
unconnected
uneventful
unimportant
unmeaning
unprofitable
wasteful