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un substantial

see definition of un substantial
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Synonyms for un substantial

adj not likely
  • fanciful
  • implausible
  • rare
  • unbelievable
  • unlikely
  • doubtful
  • dubious
  • far-fetched
  • flimsy
  • hundred-to-one
  • iffy
  • inconceivable
  • not expected
  • outside chance
  • questionable
  • slim
  • slim and none
  • uncertain
  • unconvincing
  • unheard of
  • unimaginable
  • unsubstantial
  • weak

Antonyms for un substantial

  • believable
  • likely
  • ordinary
  • plausible
  • probably
  • real
  • ostensible
  • possible
  • probable
  • tenable
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.