72 entries under weak topic. ×

1
incompetent(stupid, inadequate, limited, feeble)
1
indecisive(inferior, inadequate, limited, feeble)
1
insufficient(adjective, useless, trivial, incompetent)
1
inutile(adjective, stupid, dry, useless)
1
no good(expression, stupid, useless, incompetent)
1
nonfunctional(stupid, useless, incompetent, impractical)
1
of no use(expression, idiom, stupid, useless)
1
purposeless(adjective, stupid, useless, incompetent)
1
scrap(stupid, useless, incompetent, impractical)
1
unable(adjective, inferior, inadequate, limited)
1
unfunctional(stupid, useless, incompetent, impractical)
1
unpurposed(stupid, useless, incompetent, impractical)
1
unsound(light, slight, imaginary, flimsy)
1
unsubstantial(light, slight, useless, trivial)
1
unusuable(stupid, useless, incompetent, impractical)
1
unworkable(stupid, useless, incompetent, impractical)
0
aerial(light, slight, imaginary, flimsy)
0
decrepit(light, slight, imaginary, flimsy)
0
ephemeral(light, slight, imaginary, flimsy)
0
fanciful(light, slight, imaginary, flimsy)
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APASmart Define. (2015). idle thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/idle/thesaurus/synonyms
ChicagoSmart Define. 2015. "idle thesaurus" https://smartdefine.org/idle/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, idle thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/idle/thesaurus/synonyms>.
MLASmart Define. "idle thesaurus" 23 October 2015. Web. 25 September 2026. <https://smartdefine.org/idle/thesaurus/synonyms>