Synonyms|509Antonyms|103|Broader|4Narrower|8Related|587
0
inexpert
0
infirm
0
inoperable
0
introductory
0
kaput
0
lame
0
latent
0
laughable
0
malfunctioning
0
missing
0
misspent
0
nonfunctional
0
nonfunctioning
0
nonoperating
0
nonoperational
0
nonsurgical
0
null(adjective, ineffectual, valueless)
0
otiose
0
outrageous
0
pointless
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APASmart Define. (2015). effectual thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/effectual/thesaurus/antonyms
ChicagoSmart Define. 2015. "effectual thesaurus" https://smartdefine.org/effectual/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, effectual thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/effectual/thesaurus/antonyms>.
MLASmart Define. "effectual thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/effectual/thesaurus/antonyms>