10
unsuccessful(adjective, characteristic, defeat, failure)
7
unprofitable(adjective, characteristic, defeat, gain, failure)
7
failed(characteristic, defeat, failure, adjective)
7
hopeless(characteristic, defeat, failure, adjective)
6
sad(adjective, characteristic, defeat, happy, failure)
6
ailing(characteristic, defeat, failure, adjective)
5
baneful(adjective, characteristic, defeat, failure)
5
bad(characteristic, defeat, failure, adjective)
5
losing(adjective, characteristic, bad, defeat, failure)
5
poor(adjective, characteristic, defeat, failure)
5
unfavorable(adjective, characteristic, defeat, failure)
5
unfavourable(characteristic, defeat, failure, adjective)
5
unfortunate(adjective, characteristic, defeat, failure)
5
unhappy(adjective, characteristic, defeat, failure)
5
unlucky(adjective, characteristic, defeat, failure)
4
defeated(adjective, characteristic, defeat, failure)
4
ineffective(adjective, characteristic, strong, defeat, fit)
4
abortive(adjective, failing, characteristic, defeat, failure)
4
declining(adjective, characteristic, defeat, failure)
4
forfeiting(adjective, characteristic, defeat, failure)
11 years ago|2.7k views|share |citing 
APASmart Define. (2015). successful thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/successful/thesaurus/antonyms
ChicagoSmart Define. 2015. "successful thesaurus" https://smartdefine.org/successful/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, successful thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/successful/thesaurus/antonyms>.
MLASmart Define. "successful thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/successful/thesaurus/antonyms>