flimsy
fragile
hole-and-corner
hole-in-corner
inappreciable
light
meaningless
minor
nonmeaningful
slight
superficial
tenuous
thin
trivial
unnoticeable
aimless
back-burner
casual
contemptible
cursory
depthless
designless
dinky
dispensable
empty
few
footling
futile
garbled
immaterial
importless
inane
inconsequential
inconsiderable
inessential
inferior
insubstantial
irrelevant
lesser
little
low
meager
mean
miniature
minute
negligible
niggling
no great shakes
nonconnotative
nondenotative
nonessential
not vital
nugatory
null
paltry
petit
petty
significant
feeble
harmless
mere
obscure
small
unimportant
useless
worthless