10
dysfunctional(work, feature, state, adjective, function)
6
not good
5
impractical
4
unserviceable
4
unusable
3
baneful
3
impracticable
3
niggardly
3
unworkable
3
useless
2
abortive
2
abstract
2
bad
2
broken-down
2
burned-out
2
burnt-out
2
defective
2
deficient
2
faulty
2
fruitless
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APASmart Define. (2016). serviceable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/serviceable/thesaurus/antonyms
ChicagoSmart Define. 2016. "serviceable thesaurus" https://smartdefine.org/serviceable/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, serviceable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/serviceable/thesaurus/antonyms>.
MLASmart Define. "serviceable thesaurus" 11 March 2016. Web. 22 September 2026. <https://smartdefine.org/serviceable/thesaurus/antonyms>