20 entries under adjective topic. ×

4
worthless
2
dud
0
bogus
-1
feckless
-1
futile
-1
imperfect
-1
infertile
-1
powerless
-1
rotten
-1
spurious
-1
unavailing
-1
unserviceable
-1
untrue
-1
useless
-1
weak
-2
impotent
-2
inefficient
-2
insincere
-2
nugatory
-2
unavailable
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APASmart Define. (2016). treasure thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/treasure/thesaurus/antonyms
ChicagoSmart Define. 2016. "treasure thesaurus" https://smartdefine.org/treasure/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, treasure thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/treasure/thesaurus/antonyms>.
MLASmart Define. "treasure thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/treasure/thesaurus/antonyms>