Synonyms|42Antonyms|1|Broader|0Narrower|0Related|7

26 entries under ineffective topic. ×

0
unproductive(adjective, empty, worthless, frivolous)
0
unsuccessful(adjective, empty, worthless, frivolous)
0
useless(adjective, empty, worthless, frivolous)
0
vain(adjective, empty, worthless, frivolous)
0
worthless(adjective, empty, frivolous, futile)
-1
insignificant(adjective, empty, worthless, frivolous)
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APASmart Define. (2015). not serious thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/not_serious/thesaurus/synonyms
ChicagoSmart Define. 2015. "not serious thesaurus" https://smartdefine.org/not_serious/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, not serious thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/not_serious/thesaurus/synonyms>.
MLASmart Define. "not serious thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/not_serious/thesaurus/synonyms>