slight
flimsy
tenuous
thin
fragile
insubstantiality
unsubstantiate
wraithlike
shadowy
trivial
superficial
insubstantial
vacuitous
substancelessness
unsubstantial
unreal
puffball
hollow
gruel
physical
subjective
unsubstanced
vaporous
nonsubstantial
jejune
nonsignification
flat
poor
nonsignificance
idleness
groundlessness
catalectic
shallow
feckless
feebleness
tenuity
inessentiality
vaporosity
vapid
thinness
peregrine
purposelessness
unfunctional
aimlessness
intangible
windy
nonphysical
inessential
extraneous
lusterless
physic
unlifelike
substanceless
lackluster
cardboard
lustreless
lacklustre
underfeatured
provincialism
something and nothing
unworldly
nonmaterial
material
substantial
real
nonopacity
unsophisticated
stardust
impervium
alien
foreign
simple-mindedness
empty
impalpably
insignificance
simple-minded
self-deficient
vacuous
insubstantially
form-only
worthlessness
destitute
jazz
painted
spiritual
mode
external
extrinsic
gymnostomous
nonparaffin
vain
ineptitude
nonabsorbable
slight
flimsy
tenuous
thin
fragile
unsubstantiate
wraithlike
shadowy
trivial
superficial
insubstantial
vacuitous
unsubstantial
unreal
hollow
physical
subjective
unsubstanced
vaporous
nonsubstantial
jejune
flat
poor
catalectic
shallow
feckless
vapid
peregrine
unfunctional
intangible
windy
nonphysical
inessential
extraneous
lusterless
physic
unlifelike
substanceless
lackluster
cardboard
lustreless
lacklustre
underfeatured
unworldly
nonmaterial
material
substantial
real
unsophisticated
alien
foreign
empty
simple-minded
self-deficient
vacuous
form-only
destitute
painted
spiritual
external
extrinsic
gymnostomous
vain
impalpably
insubstantially
insubstantiality
substancelessness
puffball
gruel
nonsignification
nonsignificance
idleness
groundlessness
feebleness
tenuity
inessentiality
vaporosity
thinness
purposelessness
aimlessness
provincialism
something and nothing
nonopacity
stardust
impervium
simple-mindedness
insignificance
worthlessness
jazz
mode
nonparaffin
ineptitude
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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