79 entries under adjective topic. ×

2
harmful(bad, awkward, useless)
2
hopeless
2
inconvenient(bad, awkward, useless)
2
injurious(bad, awkward, useless)
2
meaningless(reasonable, use, value, worth)
2
negative
2
non-beneficial(gain, benefit, effect, result)
2
trivial(important, substantial, serious)
2
unhelpful(bad, awkward, useless, helpful)
2
unimportant(value, important, substantial)
2
unsuitable(bad, awkward, useless)
1
abortive
1
barren
1
bootless
1
clumsy
1
decorative
1
dispensable(able, necessary)
1
hurtful(bad, awkward, useless)
1
idle
1
inappropriate(bad, awkward, useless)
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APASmart Define. (2016). useful thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/useful/thesaurus/antonyms
ChicagoSmart Define. 2016. "useful thesaurus" https://smartdefine.org/useful/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2016, useful thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/useful/thesaurus/antonyms>.
MLASmart Define. "useful thesaurus" 5 January 2016. Web. 27 September 2026. <https://smartdefine.org/useful/thesaurus/antonyms>