50 entries under weak topic. ×

34
futile(adjective, flat, sad, unhappy)
32
bootless(adjective, idle, inadequate, limited)
31
useless(adjective, flat, sad, value)
30
fruitless(adjective, flat, sad, unhappy)
29
unavailing(adjective, stupid, short, idle)
20
abortive(adjective, idle, inadequate, limited)
20
ineffectual(adjective, stupid, insignificant, inadequate)
19
ineffective(adjective, stupid, insignificant, useless)
19
unproductive(adjective, flat, stupid, inadequate)
15
unsuccessful(adjective, inferior, short, inadequate)
14
idle(adjective, slight, small, silly)
6
inoperative(adjective, stupid, inferior, inadequate)
5
impotent(adjective, inferior, insignificant, inadequate)
3
feckless(adjective, value, inferior, insignificant)
3
inadequate(adjective, inferior, short, limited)
3
inefficient(inferior, inadequate, limited, feeble)
3
unusable(adjective, stupid, useless, impractical)
2
counterproductive(stupid, idle, useless, incompetent)
2
feeble(adjective, inferior, short, inadequate)
2
unworkable(stupid, idle, useless, incompetent)
<123>
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APASmart Define. (2016). vain thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/vain/thesaurus/synonyms
ChicagoSmart Define. 2016. "vain thesaurus" https://smartdefine.org/vain/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, vain thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/vain/thesaurus/synonyms>.
MLASmart Define. "vain thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/vain/thesaurus/synonyms>