Synonyms|255Antonyms|66|Broader|2Narrower|0Related|108

25 entries under ineffective topic. ×

16
idle(adjective, full, useless, trivial, inactivity)
14
futile(adjective, useless, trivial, empty, worthless)
13
vain(adjective, full, useless, trivial, empty)
11
hollow(adjective, full, useless, trivial, empty)
10
empty(adjective, full, useless, trivial, insufficient)
8
pointless(adjective, useless, trivial, empty, insufficient)
7
fruitless(adjective, useless, trivial, empty, insufficient)
7
unavailing(adjective, useless, trivial, empty, insufficient)
6
bootless(adjective, useless, trivial, empty, insufficient)
6
worthless(adjective, useless, trivial, empty, insufficient)
5
abortive(adjective, useless, trivial, empty, insufficient)
5
nugatory(adjective, useless, trivial, empty, insufficient)
4
unproductive(adjective, useless, trivial, empty, insufficient)
3
frivolous(adjective, slight, useless, trivial, empty)
3
superficial(adjective, empty, worthless, frivolous)
3
trivial(adjective, useless, empty, insufficient, worthless)
2
unhelpful(adjective, empty, worthless, frivolous)
2
unnecessary(adjective, empty, worthless, frivolous)
1
insignificant(adjective, useless, trivial, empty, worthless)
1
unsuccessful(adjective, useless, trivial, empty, insufficient)
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APASmart Define. (2015). otiose thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/otiose/thesaurus/synonyms
ChicagoSmart Define. 2015. "otiose thesaurus" https://smartdefine.org/otiose/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, otiose thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/otiose/thesaurus/synonyms>.
MLASmart Define. "otiose thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/otiose/thesaurus/synonyms>