3
advantageous
3
convenient
3
creative(adjective, inability, unskilled, talentless)
3
fruitful(adjective, sensible, useful, worthless)
3
necessary(adjective, unimportant, trivial, essential)
3
potent
3
practical(adjective, useful, realistic, experienced, proficient)
3
substantial
3
suitable(adjective, awkward, inappropriate)
3
supportive
3
utile
3
working(adjective, sensible, useful)
3
worthwhile(adjective, sensible, useful, worthless)
2
active
2
expedient
2
fertile(adjective, produce, ready)
2
functional
2
gainful(adjective, productive, profitable)
2
gargantuan
2
good
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APASmart Define. (2016). useless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/useless/thesaurus/antonyms
ChicagoSmart Define. 2016. "useless thesaurus" https://smartdefine.org/useless/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, useless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/useless/thesaurus/antonyms>.
MLASmart Define. "useless thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/useless/thesaurus/antonyms>