purposeless
adrift(predicate)
afloat(predicate)
aimless
planless
rudderless
undirected
Rubenesque
all-destroying
disorienting
dull-faced
half-glimpsed
high-coloured
light-headed
nonessential
overrich
rattle-brained
rebuking
spirit
stomach-turning
take-it-or-leave-it
unluckiest
unmemorable
unseaworthy
unsolvable
unthreatening