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What is another word for unsubstantial?

Need synonyms for unsubstantial? Here's a list of similar words from our thesaurus that you can use instead.

Contexts ▼

Not having a material or physical form

Weak, feeble, or lacking in strength

Lacking physical strength, weight or firmness

Having no basis in reality

Unsound, not backed by facts

Flimsy, or made of flimsy material

Not likely to be true or to happen

Too small or unimportant to be worth consideration

Of unclear or uncertain identity or nature

(of a mixture or effect) Delicately complex and understated

Tending to raise doubts or questions

Useless or having no chance of success

Small in size, physique or stature

Emphasizing insignificance

… more ▼

Adjective

Not having a material or physical form

imperceptible to the touch

phantasmagorical

unable to be touched

out of this world

extraterrestrial

too good for this world

nonmaterialistic

non-materialistic

with a sixth sense

with second sight

more ❯

“Hearing this, Scipio strove eagerly to embrace his mother, but thrice the unsubstantial ghost eluded his grasp.”

Adjective

Weak, feeble, or lacking in strength

rendered feeble

in declining health

out of condition

under the weather

on the sick list

green about the gills

not in good shape

not up to snuff

out of commission

in poor condition

hospitalized^US

hospitalised^UK

under medication

confined to bed

like death warmed up

at death's door

physically challenged

not feeling well

the worse for wear

hypochondriacal

chronically ill

long in the tooth

no spring chicken

running temperature

feeling terrible

sick as a parrot

more ❯

“Upon hearing his speech, the crowd dispersed, unconvinced by his unsubstantial tone and manner of speaking.”

Adjective

Lacking physical strength, weight or firmness

thrown together

more ❯

“Halliburton possessed what some critics called a slight and unsubstantial physique, compared with Hemingway's sturdier and more muscular frame.”

Adjective

Having no basis in reality

fool's paradise

all in one's head

out of this world

figment of imagination

product of someone's imagination

more ❯

“We must distinguish an external object of nature from some unsubstantial figment of fantasy or hallucination that has little semblance of reality.”

Adjective

Unsound, not backed by facts

lacking substance

inconsequential

unsubstantiated

without foundation

not making sense

beyond the bounds of possibility

self-contradictory

won't hold water

more ❯

“In the dawning light, the unsubstantial theory may melt away, but the ultimate facts will remain.”

Adjective

Flimsy, or made of flimsy material

light as a feather

more ❯

“The unsubstantial fabric of her dress left nothing to the imagination.”

Adjective

Not likely to be true or to happen

incomprehensible

imcomprehensible

hard to swallow

scarcely credible

out of the question

extremely doubtful

extremely implausible

extremely unlikely

extremely difficult to believe

not in the least likely

beyond the bounds of possibility

not to be thought of

won't hold water

difficult to believe

hard to believe

highly unlikely

not able to hold water

out of the ordinary

beyond the realm of reason

inconsequential

self-contradictory

not worth considering

not remotely possible

unsubstantiated

beyond possibility

under suspicion

inapprehensible

beyond one's wildest dreams

not understandable

more ❯

Adjective

Too small or unimportant to be worth consideration

inconsequential

of little consequence

of little import

of little importance

of minor importance

of no importance

of no consequence

nickel-and-dime

not worth mentioning

not worth speaking of

of no great concern

of little account

too little too late

lacking substance

not worth bothering about

twopenny-halfpenny

neither here nor there

undistinguished

underrepresented

beside the point

lower in status

no great shakes

hardly worth mentioning

of no significance

of less importance

few and far between

thin on the ground

hard to come by

smallest amount of

beneath someone

under someone's heel

not very important

not so important

more ❯

Adjective

Of unclear or uncertain identity or nature

indistinguishable

unrecognisable^UK

unrecognizable^US

lacking definition

barely perceptible

hard to make out

open to question

disorganised^UK

disorganized^US

hardly noticeable

hardly detectable

yet to be decided

open to argument

blurred round the edges

impressionistic

without character

as clear as mud

difficult to read

more ❯

Adjective

(of a mixture or effect) Delicately complex and understated

delicately complex

hardly detectable

hardly noticeable

light-colored^US

light-coloured^UK

pale-coloured^UK

pale-colored^US

pastel-coloured^UK

pastel-colored^US

peaches-and-cream

dark-colored^US

dark-coloured^UK

more ❯

Adjective

Tending to raise doubts or questions

unsubstantiated

open to question

wide of the mark

open to suspicion

subject to debate

hard to believe

under suspicion

not quite right

potentially false

potentially dangerous

far from certain

hanging by a thread

in no man's land

open to discussion

on the back burner

yet to be decided

indistinguishable

without foundation

not backed up by evidence

more ❯

Adjective

Useless or having no chance of success

no good to gundy

without rhyme or reason

inconsequential

counterproductive

good-for-nothing

without success

not worth the candle

disadvantageous

not having a prayer

with no chance of success

self-sabotaging

self-destructive

of no earthly use

spinning one's wheels

wild goose chase

lacking foundation

in vicious circle

without grounds

without foundation

not good enough

of little account

twopenny-halfpenny

nickel-and-dime

more ❯

Adjective

Small in size, physique or stature

miniaturized^US

knee-high to a grasshopper

miniaturised^UK

knee high to a grasshopper

a slip of a …

nickel-and-dime

not worth bothering about

indistinguishable

inconsequential

undistinguishable

invisible to the naked eye

impossible to detect

barely perceptible

extremely small

economic of space

knee high to a gnat

close to the ground

with no room to swing a cat

hard to make out

more ❯

Determiner

Emphasizing insignificance

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Related Words and Phrases

unsubstantially

unsubstantiality

unsubstantialities

See Also

What is the opposite of unsubstantial?
Sentences with the word unsubstantial
Words that rhyme with unsubstantial
What is the adverb for unsubstantial?
What is the adjective for unsubstantial?
What is the noun for unsubstantial?
Use our Synonym Finder

Nearby Words

unsubstantialities

unsubstantiality

unsubstantially

unsubstantiated

unsubstantiated information

unsubstantiatedly

13-letter Words Starting With

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