Synonyms|141Antonyms|25|Broader|0Narrower|0Related|24

34 entries under unsubstantiated topic. ×

8
unproven(adjective, unconfirmed, experimental, uncorroborated)
5
unconfirmed(adjective, uncorroborated)
5
unproved
4
groundless(adjective, unconfirmed, uncorroborated)
4
uncorroborated(adjective, unconfirmed)
4
unsupported(adjective, unconfirmed, uncorroborated)
2
uncertain(adjective, unconfirmed, uncorroborated)
2
unfounded(adjective, unconfirmed, uncorroborated)
2
unwarranted(adjective, unconfirmed, uncorroborated)
1
doubtful(adjective, untrue, inaccurate, unconfirmed)
1
dubious(adjective, untrue, inaccurate, unconfirmed)
1
hard to believe(expression, adjective, idiom, unconfirmed)
1
open to doubt(expression, adjective, idiom, unconfirmed)
1
open to question(expression, adjective, idiom, unconfirmed)
1
without substantiation(expression, adjective, unconfirmed, uncorroborated)
0
arguable(adjective, unconfirmed, uncorroborated)
0
bottomless(adjective, unconfirmed, uncorroborated)
0
controversial(adjective, unconfirmed, uncorroborated)
0
debatable(adjective, unconfirmed, uncorroborated)
0
disputable(adjective, unconfirmed, uncorroborated)
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APASmart Define. (2015). unverified thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unverified/thesaurus/synonyms
ChicagoSmart Define. 2015. "unverified thesaurus" https://smartdefine.org/unverified/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unverified thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unverified/thesaurus/synonyms>.
MLASmart Define. "unverified thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/unverified/thesaurus/synonyms>