73 entries under adjective topic. ×

1
contestable(characteristic, weakness, proof)
1
ill-founded(characteristic, weakness, proof)
1
unattestable(characteristic, weakness, proof)
1
unauthenticated(characteristic, weakness, error, proof)
1
unconfirmable(quality, weakness, instability)
1
undemonstrable(quality, weakness, instability)
1
ungrounded(quality, weakness, instability)
1
biodegradable(nature, hazard, danger)
1
biohazard(nature, hazard, danger)
1
defective(characteristic, weakness, defect)
1
faint(characteristic, weakness, defect)
1
false(characteristic, weakness, defect)
1
faulty(characteristic, weakness, defect)
1
feeble(characteristic, weakness, defect)
1
flimsy(weakness, vulnerability, characterisric)
1
fragile(weakness, vulnerability, characterisric)
1
inadequate(weakness, vulnerability, characterisric)
1
infirm(weakness, vulnerability, characterisric)
1
invalid(weakness, vulnerability, characterisric)
1
rickety(quality, weakness, 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>