210 entries under adjective topic. ×

1
safe(kindly, ignorant, naive, innocuous)
1
senseless(dull, simple, slow, silly)
1
sensible(easy, ready, subject, sensitive)
1
sensile(easy, ready, subject, sensitive)
1
sentient(easy, ready, subject, sensitive)
1
sitting duck(expression, easy, ready, subject)
1
slow(calm, dull, simple, informal)
1
spoiling(calm, light, soft, informal)
1
square(simple, innocent, ignorant, naive)
1
stirred(easy, ready, subject, sensitive)
1
subject(easy, ready, sensitive, affected)
1
submissive(calm, light, soft, informal)
1
sucker(simple, easy, ready, subject)
1
susceptive(easy, ready, subject, sensitive)
1
swallow(easy, ready, subject, sensitive)
1
swayed(easy, ready, subject, sensitive)
1
sympathetic(calm, light, soft, informal)
1
temperate(calm, light, soft, informal)
1
tender(easy, ready, subject, sensitive)
1
thick(dull, simple, slow, silly)
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APASmart Define. (2016). gullible thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/gullible/thesaurus/synonyms
ChicagoSmart Define. 2016. "gullible thesaurus" https://smartdefine.org/gullible/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, gullible thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/gullible/thesaurus/synonyms>.
MLASmart Define. "gullible thesaurus" 23 March 2016. Web. 30 September 2026. <https://smartdefine.org/gullible/thesaurus/synonyms>