4
unprofitable(adjective, gain)
2
disadvantageous
2
useless
2
non-beneficial(adjective, gain, benefit, wealth, profit)
1
ill
1
in vain
1
unhelpful(adjective, helpful)
0
baneful
0
unfavorable
0
unproductive
0
unrewarding
0
harmful
0
hostile
0
hurtful
0
impolitic
0
imprudent
0
inadvisable
0
inauspicious
0
incommodious
0
inconsistent
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APASmart Define. (2015). gainful thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/gainful/thesaurus/antonyms
ChicagoSmart Define. 2015. "gainful thesaurus" https://smartdefine.org/gainful/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2015, gainful thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/gainful/thesaurus/antonyms>.
MLASmart Define. "gainful thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/gainful/thesaurus/antonyms>