38 entries under weak topic. ×

32
futile(adjective, flat, sad, unhappy)
28
vain(adjective, flat, sad, unhappy)
27
useless(adjective, flat, failure, inferior)
24
unproductive(adjective, flat, silly, stupid)
24
unavailing(adjective, failure, silly, stupid)
22
ineffective(adjective, failure, silly, stupid)
21
ineffectual(adjective, failure, silly, stupid)
19
unsuccessful(adjective, inferior, inadequate, limited)
14
idle(adjective, stupid, inadequate, limited)
8
impotent(adjective, failure, silly, stupid)
6
inoperative(adjective, stupid, inferior, idle)
5
poor(adjective, unsatisfactory, impaired, unfulfilling)
4
inadequate(adjective, limited, feeble, useless)
4
unusable(adjective, stupid, useless, impractical)
3
inefficient(adjective, failure, inferior, inadequate)
3
nonfunctional(adjective, stupid, idle, useless)
3
unworkable(adjective, stupid, idle, useless)
2
counterproductive(stupid, idle, useless, incompetent)
2
feckless(stupid, inferior, idle, inadequate)
2
feeble(adjective, inadequate, limited, useless)
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APASmart Define. (2016). fruitless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fruitless/thesaurus/synonyms
ChicagoSmart Define. 2016. "fruitless thesaurus" https://smartdefine.org/fruitless/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, fruitless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fruitless/thesaurus/synonyms>.
MLASmart Define. "fruitless thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/fruitless/thesaurus/synonyms>