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Showing results for unsubstantial. Search instead for supersubstantial.
Definitions

unsubstantial

[uhn-suhb-stan-shuhl] / ˌʌn səbˈstæn ʃəl /
ADJECTIVE
flimsy
Synonyms
WEAK
fragile frail thin
Antonyms
WEAK
undeniable well-founded
ADJECTIVE
unreal
Synonyms
WEAK
imaginary unbelievable vaporous visionary
Antonyms
WEAK
undeniable well-founded
ADJECTIVE
lacking substance
Synonyms
STRONG
unreal
WEAK
aerial diaphanous ethereal filigree imaginary inane shadowy visionary
Antonyms
WEAK
undeniable well-founded

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.