Synonyms|194Antonyms|75|Broader|3Narrower|0Related|267
15
fail(verb, fail, failure, thrive)
9
flop(verb, fail)
8
miss(verb, fail, failure)
7
blunder(verb, fail, failure)
7
falter(verb, fail)
6
flounder(verb, fail)
6
founder(verb, fail)
5
bomb
5
failing
5
fall(verb, fail)
5
fall short(verb, fail)
4
be unsuccessful(verb, expression, idiom, failure)
4
come to grief(expression, idiom)
4
lose(verb, fail)
4
misfire(verb, fail)
3
bungle
3
bust(verb, fail)
3
collapse(verb, fail)
3
fall flat(verb, expression, idiom)
3
fiasco
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ChicagoSmart Define. 2015. "flunk thesaurus" https://smartdefine.org/flunk/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, flunk thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/flunk/thesaurus/synonyms>.
MLASmart Define. "flunk thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/flunk/thesaurus/synonyms>