Synonyms|127Antonyms|0|Broader|0Narrower|0Related|14
1
undetermined
1
unestablished
1
unfixed
1
unfounded
1
ungrounded
1
unprolonged(lower, short, precise, reduced, abbreviated)
1
unproved
1
unproven
1
unrigorous
1
unsettled
1
unshown
1
unsound
1
unsubstantial
1
unsubstantiated
1
unsupported
1
unsupported by evidence(expression, idiom)
1
untenable
1
untested
1
untried
1
unvalidated
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APASmart Define. (2015). unsustained thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unsustained/thesaurus/synonyms
ChicagoSmart Define. 2015. "unsustained thesaurus" https://smartdefine.org/unsustained/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, unsustained thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unsustained/thesaurus/synonyms>.
MLASmart Define. "unsustained thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/unsustained/thesaurus/synonyms>