1
slow(adjective, calm, dull, simple, informal)
1
spoiling(adjective, calm, light, soft, informal)
1
square(adjective, simple, innocent, ignorant, naive)
1
stirred(adjective, easy, ready, subject, sensitive)
1
subject(adjective, easy, ready, sensitive, affected)
1
submissive(adjective, calm, light, soft, informal)
1
sucker(adjective, simple, easy, ready, subject)
1
superscredulous
1
susceptive(adjective, easy, ready, subject, sensitive)
1
swallow(adjective, easy, ready, subject, sensitive)
1
swayed(adjective, easy, ready, subject, sensitive)
1
sympathetic(adjective, calm, light, soft, informal)
1
temperate(adjective, calm, light, soft, informal)
1
tender(adjective, easy, ready, subject, sensitive)
1
thick(adjective, dull, simple, slow, silly)
1
tolerant(adjective, calm, light, soft, gentle)
1
touched(adjective, easy, ready, subject, sensitive)
1
tractable(adjective, calm, light, soft, informal)
1
tumble for(expression, adjective, easy, ready, subject)
1
unacquainted(adjective, kindly, ignorant, naive, unknowing)
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APASmart Define. (2016). gullible thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/gullible/thesaurus/synonyms
ChicagoSmart Define. 2016. "gullible thesaurus" https://smartdefine.org/gullible/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, gullible thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/gullible/thesaurus/synonyms>.
MLASmart Define. "gullible thesaurus" 23 March 2016. Web. 27 September 2026. <https://smartdefine.org/gullible/thesaurus/synonyms>