55 entries under simple topic. ×

9
zany(adjective, weak, silly, foolish)
8
fantastic(adjective, weak, wild, strange)
8
unreasonable(adjective, weak, silly, foolish)
7
daft(adjective, weak, wild, silly)
6
dippy(adjective, light, foolish, stupid)
6
wacky(adjective, light, weak, wild)
4
dotty(adjective, weak, silly, foolish)
4
meaningless(adjective, dull, slow, silly)
4
mindless(adjective, dull, silly, foolish)
3
brainless(adjective, dull, weak, silly)
3
daffy(adjective, weak, strange, foolish)
3
unintelligent(adjective, dull, weak, silly)
3
unwise(adjective, weak, wild, silly)
3
witless(adjective, dull, weak, silly)
2
ill-advised(dull, wrong, false, foolish)
2
imprudent(adjective, weak, wrong, false)
2
inconsistent(adjective, silly, stupid, crazy)
2
kooky(adjective, weak, unusual, wild)
2
lunatic(adjective, weak, silly, foolish)
2
pointless(adjective, dull, slow, silly)
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APASmart Define. (2015). ludicrous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/ludicrous/thesaurus/synonyms
ChicagoSmart Define. 2015. "ludicrous thesaurus" https://smartdefine.org/ludicrous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, ludicrous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/ludicrous/thesaurus/synonyms>.
MLASmart Define. "ludicrous thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/ludicrous/thesaurus/synonyms>