35 entries under unwarranted topic. ×

23
baseless(adjective, reason, poor, foolish, true)
20
unfounded(adjective, reason, foolish, true, crazy)
18
unjustifiable(adjective, careless, defended, verbal attack)
12
idle(adjective, reason, false, true, worthless)
12
unjustified(adjective, reason, untrue, justification)
10
wanton(adjective, careless, cruel, malicious)
9
false(adjective, reason, poor, error, reasoning)
9
unsupported(adjective, reason, untrue, justification)
8
gratuitous(adjective, reason, useless, untrue)
7
flimsy(adjective, reason, poor, negative)
7
ungrounded(adjective, poor, negative, error)
6
empty(adjective, reason, negative, worthless)
6
indefensible(adjective, senseless, wanton, gratuitous)
5
bottomless(adjective, reason, false, true, senseless)
5
uncalled-for(adjective, reason, false, useless, senseless)
3
causeless(adjective, reason, useless, senseless)
3
unprovoked(adjective, reason, senseless, reckless)
3
unsupportable(adjective, senseless, wanton, gratuitous)
2
foundationless(adjective, reason, false, untrue)
2
needless(adjective, useless, unnecessary, wanton)
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APASmart Define. (2015). groundless thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/groundless/thesaurus/synonyms
ChicagoSmart Define. 2015. "groundless thesaurus" https://smartdefine.org/groundless/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, groundless thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/groundless/thesaurus/synonyms>.
MLASmart Define. "groundless thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/groundless/thesaurus/synonyms>