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un substantial
adjective as in improbable
adjective as in inconceivable
adjective as in incredible
adjective as in infirm
adjective as in insignificant
Strongest matches
adjective as in insubstantial
adjective as in intangible
Strong matches
adjective as in jerry-built
adjective as in less
adjective as in light
adjective as in light
adjective as in limp
Strong matches
adjective as in metaphysical
Weak matches
- bodiless
- deep
- difficult
- discarnate
- eternal
- fundamental
- high-flown
- ideal
- immaterial
- impalpable
- incorporeal
- insubstantial
- intangible
- intellectual
- jesuitic
- nonmaterial
- nonphysical
- numinous
- oversubtle
- preternatural
- profound
- recondite
- superhuman
- superior
- supermundane
- suprahuman
- supramundane
- supranatural
- transcendental
- unearthly
- unfleshly
- universal
- unphysical
- unreal
- unsubstantial
adjective as in nonexistent
Weak matches
- airy
- baseless
- blank
- chimerical
- dead
- defunct
- departed
- dreamlike
- dreamy
- empty
- ethereal
- extinct
- extinguished
- fancied
- few and far between
- flimsy
- gone
- gossamery
- groundless
- hallucinatory
- hypothetical
- illusory
- imaginary
- imagined
- immaterial
- imponderable
- insubstantial
- legendary
- lost
- missing
- mythical
- null
- null and void
- passed away
- passed on
- perished
- shadowy
- ungrounded
- unreal
- unsubstantial
- vague
- vaporous
- void
- without foundation
adjective as in pale
adjective as in puny
adjective as in sleazy
adjective as in thick
Strongest match
Strong match
adjective as in thin
adjective as in thin
adjective as in unbelievable
Strongest matches
adjective as in unreal
Strongest matches
Strong matches
adjective as in unsound
Strongest matches
adjective as in weak
Strongest matches
Weak matches
adjective as in weak
Strongest matches
adjective as in wrong
adjective as in floating
Strongest match
Weak matches
adjective as in unsubstantial
Weak matches
adjective as in shadowy
adjective as in unsubstantial
adjective as in bodiless
adjective as in moony
Weak matches
- abstracted
- astral
- calming
- chimerical
- daydreaming
- excellent
- fanciful
- fantastic
- gentle
- idealistic
- imaginary
- immaterial
- impractical
- intangible
- introspective
- introvertive
- lulling
- marvelous
- misty
- musing
- mythical
- nightmarish
- otherworldly
- out of this world
- pensive
- phantasmagoric
- phantasmagorical
- preoccupied
- quixotic
- relaxing
- shadowy
- soothing
- speculative
- unreal
- unsubstantial
- utopian
- vague
- visionary
- whimsical
- woolgathering
adjective as in nonphysical
Weak matches
- aerial
- airy
- apparitional
- asomatous
- bodiless
- celestial
- disbodied
- discarnate
- disembodied
- dreamlike
- dreamy
- ethereal
- ghostly
- heavenly
- impalpable
- imponderable
- incorporate
- incorporeal
- insensible
- insubstantial
- intangible
- metaphysical
- nonmaterial
- psychic
- shadowy
- spectral
- spiritlike
- spiritual
- subjective
- supernatural
- unbodied
- uncorporal
- unearthly
- unembodied
- unfleshly
- unsubstantial
- unworldly
- wraithlike
adjective as in notional
Weak matches
- abstract
- apocryphal
- apparitional
- assumed
- chimeric
- chimerical
- conceptual
- deceptive
- delusive
- dreamed-up
- dreamlike
- dreamy
- fabulous
- fancied
- fanciful
- fantastic
- fantastical
- fictional
- figmental
- fool's paradise
- hallucinatory
- hypothetical
- ideal
- illusive
- illusory
- imaginative
- imagined
- legendary
- made-up
- mythological
- nonexistent
- phantasmal
- phantasmic
- quixotic
- shadowy
- spectral
- supposed
- supposititious
- theoretical
- trumped-up
- unreal
- unsubstantial
- visionary
- whimsical
adjective as in unbodied
Weak matches
- aerial
- airy
- apparitional
- asomatous
- bodiless
- celestial
- disbodied
- discarnate
- disembodied
- dreamlike
- dreamy
- ethereal
- ghostly
- heavenly
- impalpable
- imponderable
- incorporate
- incorporeal
- insensible
- insubstantial
- intangible
- metaphysical
- nonmaterial
- nonphysical
- psychic
- shadowy
- spectral
- spiritlike
- spiritual
- subjective
- supernatural
- uncorporal
- unearthly
- unembodied
- unfleshly
- unsubstantial
- unworldly
- wraithlike
adjective as in unconceivable
adjective as in uncorporal
Weak matches
- aerial
- airy
- apparitional
- asomatous
- bodiless
- celestial
- disbodied
- discarnate
- disembodied
- dreamlike
- dreamy
- ethereal
- ghostly
- heavenly
- impalpable
- imponderable
- incorporate
- incorporeal
- insensible
- insubstantial
- intangible
- metaphysical
- nonmaterial
- nonphysical
- psychic
- shadowy
- spectral
- spiritlike
- spiritual
- subjective
- supernatural
- unbodied
- unearthly
- unembodied
- unfleshly
- unsubstantial
- unworldly
- wraithlike
adjective as in waterish
adjective as in weakly
adjective as in weightless
Strongest matches
Weak matches
- agile
- airy
- atmospheric
- buoyant
- crumbly
- dainty
- delicate
- downy
- easy
- effervescent
- featherweight
- feathery
- filmy
- flimsy
- floatable
- floating
- fluffy
- friable
- frothy
- gossamery
- graceful
- imponderous
- insubstantial
- light as a feather
- light-footed
- lightweight
- lithe
- little
- loose
- meager
- nimble
- petty
- porous
- portable
- sandy
- sheer
- slender
- slight
- small
- spongy
- sprightly
- sylphlike
- thin
- tissuelike
- trifling
- unheavy
- unsubstantial
adjective as in dreamy
adjective as in empty
adjective as in ethereal
adjective as in flimsy
adjective as in flimsy
adjective as in frail
adjective as in futile
Strongest matches
adjective as in illogical
Strongest matches
adjective as in imaginary
Weak matches
adjective as in immaterial
Strong matches
Weak matches
- aerial
- airy
- apparitional
- asomatous
- bodiless
- celestial
- disbodied
- discarnate
- disembodied
- dreamlike
- dreamy
- ethereal
- ghostly
- heavenly
- impalpable
- imponderable
- incorporate
- insensible
- intangible
- metaphysical
- nonphysical
- psychic
- shadowy
- spectral
- spiritlike
- spiritual
- subjective
- supernatural
- unearthly
- unembodied
- unfleshly
- unsubstantial
- unworldly
- wraithlike
adjective as in implausible
adjective as in improbable
adjective as in inconceivable
adjective as in incredible
adjective as in infirm
adjective as in insignificant
Strongest matches
adjective as in insubstantial
adjective as in intangible
Strong matches
adjective as in jerry-built
adjective as in less
adjective as in light
adjective as in light
adjective as in limp
Strong matches
adjective as in metaphysical
Weak matches
- bodiless
- deep
- difficult
- discarnate
- eternal
- fundamental
- high-flown
- ideal
- immaterial
- impalpable
- incorporeal
- insubstantial
- intangible
- intellectual
- jesuitic
- nonmaterial
- nonphysical
- numinous
- oversubtle
- preternatural
- profound
- recondite
- superhuman
- superior
- supermundane
- suprahuman
- supramundane
- supranatural
- transcendental
- unearthly
- unfleshly
- universal
- unphysical
- unreal
- unsubstantial
adjective as in nonexistent
Weak matches
- airy
- baseless
- blank
- chimerical
- dead
- defunct
- departed
- dreamlike
- dreamy
- empty
- ethereal
- extinct
- extinguished
- fancied
- few and far between
- flimsy
- gone
- gossamery
- groundless
- hallucinatory
- hypothetical
- illusory
- imaginary
- imagined
- immaterial
- imponderable
- insubstantial
- legendary
- lost
- missing
- mythical
- null
- null and void
- passed away
- passed on
- perished
- shadowy
- ungrounded
- unreal
- unsubstantial
- vague
- vaporous
- void
- without foundation
adjective as in pale
adjective as in puny
adjective as in sleazy
adjective as in thick
Strongest match
Strong match
adjective as in thin
adjective as in thin
adjective as in unbelievable
Strongest matches
adjective as in unreal
Strongest matches
Strong matches
adjective as in unsound
Strongest matches
adjective as in weak
Strongest matches
Weak matches
adjective as in weak
Strongest matches
adjective as in wrong
adjective as in floating
Strongest match
Weak matches
adjective as in unsubstantial
Weak matches
adjective as in shadowy
adjective as in unsubstantial
adjective as in bodiless
adjective as in moony
Weak matches
- abstracted
- astral
- calming
- chimerical
- daydreaming
- excellent
- fanciful
- fantastic
- gentle
- idealistic
- imaginary
- immaterial
- impractical
- intangible
- introspective
- introvertive
- lulling
- marvelous
- misty
- musing
- mythical
- nightmarish
- otherworldly
- out of this world
- pensive
- phantasmagoric
- phantasmagorical
- preoccupied
- quixotic
- relaxing
- shadowy
- soothing
- speculative
- unreal
- unsubstantial
- utopian
- vague
- visionary
- whimsical
- woolgathering
adjective as in nonphysical
Weak matches
- aerial
- airy
- apparitional
- asomatous
- bodiless
- celestial
- disbodied
- discarnate
- disembodied
- dreamlike
- dreamy
- ethereal
- ghostly
- heavenly
- impalpable
- imponderable
- incorporate
- incorporeal
- insensible
- insubstantial
- intangible
- metaphysical
- nonmaterial
- psychic
- shadowy
- spectral
- spiritlike
- spiritual
- subjective
- supernatural
- unbodied
- uncorporal
- unearthly
- unembodied
- unfleshly
- unsubstantial
- unworldly
- wraithlike
adjective as in notional
Weak matches
- abstract
- apocryphal
- apparitional
- assumed
- chimeric
- chimerical
- conceptual
- deceptive
- delusive
- dreamed-up
- dreamlike
- dreamy
- fabulous
- fancied
- fanciful
- fantastic
- fantastical
- fictional
- figmental
- fool's paradise
- hallucinatory
- hypothetical
- ideal
- illusive
- illusory
- imaginative
- imagined
- legendary
- made-up
- mythological
- nonexistent
- phantasmal
- phantasmic
- quixotic
- shadowy
- spectral
- supposed
- supposititious
- theoretical
- trumped-up
- unreal
- unsubstantial
- visionary
- whimsical
adjective as in unbodied
Weak matches
- aerial
- airy
- apparitional
- asomatous
- bodiless
- celestial
- disbodied
- discarnate
- disembodied
- dreamlike
- dreamy
- ethereal
- ghostly
- heavenly
- impalpable
- imponderable
- incorporate
- incorporeal
- insensible
- insubstantial
- intangible
- metaphysical
- nonmaterial
- nonphysical
- psychic
- shadowy
- spectral
- spiritlike
- spiritual
- subjective
- supernatural
- uncorporal
- unearthly
- unembodied
- unfleshly
- unsubstantial
- unworldly
- wraithlike
adjective as in unconceivable
adjective as in uncorporal
Weak matches
- aerial
- airy
- apparitional
- asomatous
- bodiless
- celestial
- disbodied
- discarnate
- disembodied
- dreamlike
- dreamy
- ethereal
- ghostly
- heavenly
- impalpable
- imponderable
- incorporate
- incorporeal
- insensible
- insubstantial
- intangible
- metaphysical
- nonmaterial
- nonphysical
- psychic
- shadowy
- spectral
- spiritlike
- spiritual
- subjective
- supernatural
- unbodied
- unearthly
- unembodied
- unfleshly
- unsubstantial
- unworldly
- wraithlike
adjective as in waterish
adjective as in weakly
adjective as in weightless
Strongest matches
Weak matches
- agile
- airy
- atmospheric
- buoyant
- crumbly
- dainty
- delicate
- downy
- easy
- effervescent
- featherweight
- feathery
- filmy
- flimsy
- floatable
- floating
- fluffy
- friable
- frothy
- gossamery
- graceful
- imponderous
- insubstantial
- light as a feather
- light-footed
- lightweight
- lithe
- little
- loose
- meager
- nimble
- petty
- porous
- portable
- sandy
- sheer
- slender
- slight
- small
- spongy
- sprightly
- sylphlike
- thin
- tissuelike
- trifling
- unheavy
- unsubstantial
adjective as in dreamy
adjective as in empty
adjective as in ethereal
adjective as in flimsy
adjective as in flimsy
adjective as in frail
adjective as in futile
Strongest matches
adjective as in illogical
Strongest matches
adjective as in imaginary
Weak matches
adjective as in immaterial
Strong matches
Weak matches
- aerial
- airy
- apparitional
- asomatous
- bodiless
- celestial
- disbodied
- discarnate
- disembodied
- dreamlike
- dreamy
- ethereal
- ghostly
- heavenly
- impalpable
- imponderable
- incorporate
- insensible
- intangible
- metaphysical
- nonphysical
- psychic
- shadowy
- spectral
- spiritlike
- spiritual
- subjective
- supernatural
- unearthly
- unembodied
- unfleshly
- unsubstantial
- unworldly
- wraithlike
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Synonym of the day
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On this page you'll find 2075 synonyms, antonyms, and words related to un-substantial, such as: fanciful, implausible, rare, unbelievable, unlikely, and doubtful.
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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