60 entries under adjective topic. ×

17
unsuccessful(failing, unsuccessful, arouse bad feelings)
15
ineffectual(unsuccessful, arouse bad feelings)
13
futile(unsuccessful, arouse bad feelings)
12
fruitless(unsuccessful, arouse bad feelings)
11
flunked
10
abortive(failing, unsuccessful, arouse bad feelings)
8
flopped
8
collapsed
8
foiled(unsuccessful, arouse bad feelings)
8
frustrated(unsuccessful, arouse bad feelings)
7
useless(unsuccessful, arouse bad feelings)
6
failing
6
thwarted(unsuccessful, arouse bad feelings)
5
bungled(verb, unsuccessful, unproductive)
5
fallen
5
insolvent
4
bankrupt
4
ineffective
4
pointless(unsuccessful, arouse bad feelings)
4
ruined(bankrupt, broke, insolvent)
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APASmart Define. (2016). failed thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/failed/thesaurus/synonyms
ChicagoSmart Define. 2016. "failed thesaurus" https://smartdefine.org/failed/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, failed thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/failed/thesaurus/synonyms>.
MLASmart Define. "failed thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/failed/thesaurus/synonyms>