8
dysfunctional(feature, state, work)
4
inoperative
4
nonoperational
3
dormant
3
inoperable
3
nonfunctional
2
dead
2
idle
2
unusable
1
counteractive
1
inactive
1
ineffective
1
inert
1
kaput
1
latent
1
nonfunctioning
1
nonoperating
1
passé
1
unserviceable
1
unworkable
11 years ago|1k views|share |citing 
APASmart Define. (2015). operational thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/operational/thesaurus/antonyms
ChicagoSmart Define. 2015. "operational thesaurus" https://smartdefine.org/operational/thesaurus/antonyms (accessed September 21, 2026).
HarvardSmart Define 2015, operational thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/operational/thesaurus/antonyms>.
MLASmart Define. "operational thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/operational/thesaurus/antonyms>