Synonyms|832Antonyms|240|Broader|11Narrower|0Related|915
1
useless
1
vain
1
wasteful
1
weak
1
worthless
1
in vain
1
non-beneficial(adjective, effect, result, outcome)
0
futile
0
bootless
0
counterproductive
0
dependent
0
disordered
0
disorganized
0
dysfunctional
0
incapable
0
inept(adjective, weak, delicate, expert, capable)
0
inexpedient
0
inexpert
0
lame(adjective, weak, healthy, feeble, graceful)
0
pointless
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APASmart Define. (2015). efficient thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/efficient/thesaurus/antonyms
ChicagoSmart Define. 2015. "efficient thesaurus" https://smartdefine.org/efficient/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, efficient thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/efficient/thesaurus/antonyms>.
MLASmart Define. "efficient thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/efficient/thesaurus/antonyms>