Synonyms of insubstantial

insubstantial

adjective

1

as in unsubstantial

being of a material lacking in sturdiness or substance

an insubstantial carton that could not possibly stand up during long-distance shipping

Synonyms & Similar Words

• unsubstantial
• flimsy
• gossamer
• frothy
• fragile
• delicate
• filmy
• fine
• gauzy
• cobwebby
• sheer
• sleazy
• transparent
• feeble
• gossamery
• dainty
• frail
• diaphanous

Antonyms & Near Antonyms

• substantial
• sturdy
• durable
• lasting
• tough
• heavy
• coarse
• rough
• rude
• knockabout

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• substantial
• sturdy
• durable
• lasting
• tough
• heavy
• coarse
• rough
• rude
• knockabout

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2

as in spiritual

not composed of matter

energy is insubstantial

Synonyms & Similar Words

• spiritual
• incorporeal
• metaphysical
• psychical
• immaterial
• unsubstantial
• supernatural
• nonmaterial
• invisible
• psychic
• nonphysical
• thin
• formless
• ethereal
• bodiless
• unbodied
• intangible
• vaporous
• gaseous
• tenuous
• impalpable
• diaphanous
• airy
• insensible
• wispish
• gossamery

Antonyms & Near Antonyms

• substantial
• physical
• corporeal
• material
• tangible
• visible
• animal
• noticeable
• carnal
• discernible
• detectable
• observable
• bodily
• sensible
• solid
• palpable
• heavy
• massive
• bulky
• fleshly
• discernable

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• substantial
• physical
• corporeal
• material
• tangible
• visible
• animal
• noticeable
• carnal
• discernible
• detectable
• observable
• bodily
• sensible
• solid
• palpable
• heavy
• massive
• bulky
• fleshly
• discernable

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