40 entries under fantastic topic. ×

25
silly(adjective, foolish, stupid, trivial)
18
foolish(adjective, dull, silly, stupid)
15
fatuous(adjective, silly, foolish, stupid)
10
ridiculous(adjective, silly, foolish, stupid)
9
goofy(adjective, silly, foolish, unwise)
8
irresponsible(adjective, silly, foolish, stupid)
6
inane(adjective, dull, silly, foolish, stupid)
5
crazy(adjective, silly, foolish, stupid)
3
absurd(adjective, silly, foolish, stupid)
3
insane(adjective, silly, foolish, unwise)
3
ludicrous(adjective, dull, silly, foolish, stupid)
3
nonsensical(adjective, dull, silly, foolish, stupid)
3
senseless(adjective, dull, silly, foolish, stupid)
2
foolhardy(adjective, silly, foolish, stupid)
2
harebrained(silly, foolish, stupid, trivial)
2
preposterous(adjective, silly, foolish, stupid)
1
balmy(silly, foolish, stupid, absurd)
1
beyond all reason(expression, idiom, silly, foolish)
1
bizarre(silly, foolish, unwise, impractical)
1
cockeyed(silly, foolish, unwise, impractical)
<12>
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APASmart Define. (2015). puerile thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/puerile/thesaurus/synonyms
ChicagoSmart Define. 2015. "puerile thesaurus" https://smartdefine.org/puerile/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, puerile thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/puerile/thesaurus/synonyms>.
MLASmart Define. "puerile thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/puerile/thesaurus/synonyms>