25 entries under foolish topic. ×

13
trusting(verb, adjective, person, naive)
4
credulous(adjective, innocent, susceptible, naive)
2
trustful(innocent, green, susceptible, naive)
1
being a sucker(expression, innocent, susceptible, naive)
1
biting(innocent, susceptible, naive, trusting)
1
easily taken in(expression, innocent, susceptible, naive)
1
easy mark(innocent, green, susceptible, naive)
1
falling hook line and sinker(expression, innocent, susceptible, naive)
1
green(innocent, susceptible, naive, gullible)
1
innocent(good, pure, humble, naive)
1
kidding oneself(expression, innocent, susceptible, naive)
1
mark(innocent, susceptible, naive, trusting)
1
naive(innocent, susceptible, gullible, trusting)
1
silly(innocent, susceptible, naive, trusting)
1
simple(innocent, susceptible, naive, gullible)
1
sucker(innocent, susceptible, naive, trusting)
1
susceptible(innocent, naive, trusting)
1
swallowing whole(expression, innocent, susceptible, naive)
1
taken in(innocent, green, susceptible, naive)
1
taking the bait(expression, innocent, susceptible, naive)
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APASmart Define. (2016). believing thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/believing/thesaurus/synonyms
ChicagoSmart Define. 2016. "believing thesaurus" https://smartdefine.org/believing/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, believing thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/believing/thesaurus/synonyms>.
MLASmart Define. "believing thesaurus" 23 March 2016. Web. 22 September 2026. <https://smartdefine.org/believing/thesaurus/synonyms>