64 entries under weakness topic. ×

2
without basis(expression, quality, instability)
1
contestable(adjective, characteristic, proof)
1
ill-founded(adjective, characteristic, proof)
1
unattestable(adjective, characteristic, proof)
1
unauthenticated(adjective, characteristic, error, proof)
1
unconfirmable(adjective, quality, instability)
1
undemonstrable(adjective, quality, instability)
1
ungrounded(adjective, quality, instability)
1
defective(adjective, characteristic, defect)
1
faint(adjective, characteristic, defect)
1
false(adjective, characteristic, defect)
1
faulty(adjective, characteristic, defect)
1
feeble(adjective, characteristic, defect)
1
flimsy(adjective, vulnerability, characterisric)
1
fragile(adjective, vulnerability, characterisric)
1
inadequate(adjective, vulnerability, characterisric)
1
infirm(adjective, vulnerability, characterisric)
1
invalid(adjective, vulnerability, characterisric)
1
on shaky ground(expression, idiom, quality, instability)
1
rickety(adjective, quality, instability)
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APASmart Define. (2015). unsustainable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unsustainable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unsustainable thesaurus" https://smartdefine.org/unsustainable/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unsustainable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unsustainable/thesaurus/synonyms>.
MLASmart Define. "unsustainable thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/unsustainable/thesaurus/synonyms>