fragile
tenuous
flimsy
slight
thin
insubstantiality
unsubstantiate
wraithlike
shadowy
trivial
superficial
insubstantial
substancelessness
vacuitous
unreal
unsubstantial
puffball
hollow
gruel
physical
subjective
unsubstanced
jejune
nonsubstantial
vaporous
nonsignification
flat
nonsignificance
poor
idleness
groundlessness
catalectic
shallow
feckless
feebleness
tenuity
vaporosity
inessentiality
thinness
vapid
peregrine
inessential
purposelessness
windy
nonphysical
intangible
aimlessness
unfunctional
physic
lustreless
lusterless
cardboard
substanceless
unlifelike
extraneous
lacklustre
lackluster
real
something and nothing
material
nonmaterial
underfeatured
provincialism
nonopacity
substantial
unworldly
unsophisticated
impervium
alien
foreign
simple-mindedness
stardust
impalpably
insubstantially
empty
self-deficient
insignificance
vacuous
simple-minded
nonparaffin
ineptitude
spiritual
painted
worthlessness
form-only
extrinsic
destitute
gymnostomous
mode
jazz
vain
nonabsorbable
external
fragile
tenuous
flimsy
slight
thin
unsubstantiate
wraithlike
shadowy
trivial
superficial
insubstantial
vacuitous
unreal
unsubstantial
hollow
physical
subjective
unsubstanced
jejune
nonsubstantial
vaporous
flat
poor
catalectic
shallow
feckless
vapid
peregrine
inessential
windy
nonphysical
intangible
unfunctional
physic
lustreless
lusterless
cardboard
substanceless
unlifelike
extraneous
lacklustre
lackluster
real
material
nonmaterial
underfeatured
substantial
unworldly
unsophisticated
alien
foreign
empty
self-deficient
vacuous
simple-minded
spiritual
painted
form-only
extrinsic
destitute
gymnostomous
vain
external
impalpably
insubstantially
insubstantiality
substancelessness
puffball
gruel
nonsignification
nonsignificance
idleness
groundlessness
feebleness
tenuity
vaporosity
inessentiality
thinness
purposelessness
aimlessness
something and nothing
provincialism
nonopacity
impervium
simple-mindedness
stardust
insignificance
nonparaffin
ineptitude
worthlessness
mode
jazz
nonabsorbable
English words for 'lacking substance or significance'
As you may have noticed, above you will find words for "lacking substance or significance". Hover the mouse over the word you'd like to know more about to view its definition. Click 
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knitted material
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mocking
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humiliation
tedium
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jest
meditation
spherical
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