75 entries under vain topic. ×

1
spineless(inferior, inadequate, limited, feeble, useless)
1
unintelligent(adjective, dull, simple, slow, silly)
1
unmeaning(adjective, value, insignificant, unimportant, empty)
1
unreasonable(adjective, useless, ridiculous, absurd, pointless)
1
withered(inferior, inadequate, limited, feeble, useless)
0
double talk(expression, adjective, ridiculous, absurd, pointless)
0
emasculate(inadequate, limited, feeble, useless)
0
illogical(adjective, silly, ridiculous, absurd, pointless)
0
inconsistent(adjective, ridiculous, absurd, pointless)
0
irrational(adjective, ridiculous, absurd, pointless)
0
losing(lost, ineffective)
0
not effective(expression, inadequate, limited, feeble, useless)
0
slack-spined(inadequate, limited, feeble, useless)
0
unsound(adjective, ridiculous, absurd, worthless, pointless)
0
without rhyme or reason(expression, adjective, idiom, ridiculous, absurd)
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APASmart Define. (2016). futile thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/futile/thesaurus/synonyms
ChicagoSmart Define. 2016. "futile thesaurus" https://smartdefine.org/futile/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, futile thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/futile/thesaurus/synonyms>.
MLASmart Define. "futile thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/futile/thesaurus/synonyms>