830 entries under adjective topic. ×

6
small(noun, weak, weakness, ill)
6
smooth(feature, dull, hard, weak)
6
thin(weak, weakness, ill, faint)
6
unsound(weak, sound, weakness, well)
5
failing(noun, weak, weakness, which)
5
flat(verb, feature, weak, weakness)
5
ill(noun, adverb, feature, weak)
5
indistinct(weak, weakness, failing, faint)
5
insecure(weakness, steady, failing, infirmity)
5
insipid(weak, weakness, failing, infirmity)
5
invalid(noun, verb, action, weak)
5
lame(weak, weakness, healthy, ill)
5
mellow(verb, action, rough, weakness)
5
regular(noun, weak, weakness, failing)
5
shaky(weak, sound, weakness, failing)
5
stale(noun, verb, action, weak)
5
unstable(clear, sound, weakness, steady)
5
unsteady(weak, weakness, failing, infirmity)
5
unsubstantial(weak, weakness, failing, infirmity)
5
wasted(weak, weakness, failing, infirmity)
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APASmart Define. (2016). strong thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/strong/thesaurus/antonyms
ChicagoSmart Define. 2016. "strong thesaurus" https://smartdefine.org/strong/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2016, strong thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/strong/thesaurus/antonyms>.
MLASmart Define. "strong thesaurus" 1 April 2016. Web. 26 September 2026. <https://smartdefine.org/strong/thesaurus/antonyms>