130 entries under foolish topic. ×

2
unwise(adjective, weak, silly, stupid)
2
weak(adjective, dull, slow, silly)
2
zany(weak, silly, thoughtless, unwise)
1
batty(adjective, silly, stupid, insignificant)
1
being a sucker(expression, innocent, susceptible, naive)
1
believing(innocent, susceptible, naive, gullible)
1
biting(adjective, innocent, susceptible, naive)
1
brutish(adjective, rough, violent, silly)
1
dippy(weak, silly, thoughtless, unwise)
1
easily taken in(expression, innocent, susceptible, naive)
1
easy mark(expression, fool, innocent, naive)
1
falling hook line and sinker(expression, innocent, susceptible, naive)
1
fantastic(weak, silly, thoughtless, unwise)
1
flaky(adjective, silly, stupid, insignificant)
1
futile(adjective, dull, slow, stupid)
1
harebrained(weak, silly, thoughtless, unwise)
1
ill-advised(dull, weak, silly, thoughtless)
1
ill-considered(weak, silly, thoughtless, unwise)
1
illogical(adjective, silly, stupid, insignificant)
1
imprudent(weak, silly, thoughtless, unwise)
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APASmart Define. (2016). simple thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/simple/thesaurus/synonyms
ChicagoSmart Define. 2016. "simple thesaurus" https://smartdefine.org/simple/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, simple thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/simple/thesaurus/synonyms>.
MLASmart Define. "simple thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/simple/thesaurus/synonyms>