25 entries under adjective topic. ×

7
baseless(poor, negative, untrue, vacant)
7
groundless(poor, negative, error, unwarranted)
5
unwarranted(right, reasonable)
4
unfounded
3
erroneous(bad, false, mad, unreasonable)
3
fallacious(bad, wrong, poor, false)
3
false(bad, poor, error, incorrect)
3
flimsy(poor, negative, unwarranted, untrue)
2
apocryphal
2
unreal(negative, mad, unreasonable, error)
1
deceptive(mad, unreasonable, irrational)
1
delusive(mad, unreasonable, irrational)
1
misleading(mad, unreasonable, irrational)
1
nonexistent(real, fictional)
1
sophistic(mad, unreasonable, irrational, fallacious)
1
unjustifiable
1
unsound
1
untrue
1
wrong
0
deceitful
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APASmart Define. (2015). ungrounded thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/ungrounded/thesaurus/synonyms
ChicagoSmart Define. 2015. "ungrounded thesaurus" https://smartdefine.org/ungrounded/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, ungrounded thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/ungrounded/thesaurus/synonyms>.
MLASmart Define. "ungrounded thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/ungrounded/thesaurus/synonyms>