84 entries under susceptible topic. ×

59
naive(adjective, calm, person, dull, light)
24
credulous(adjective, person, simple, feelings, silly)
15
simple(adjective, dull, silly, foolish, stupid)
13
foolish(adjective, dull, simple, slow, silly)
12
ingenuous(adjective, simple, innocent, ignorant)
11
unsophisticated(adjective, simple, innocent, green)
9
wide-eyed(adjective, person, simple, feelings, innocent)
8
unsuspicious(adjective, calm, light, simple, soft)
7
trustful(adjective, innocent, green, naive)
6
silly(adjective, stupid, innocent, green, fat)
6
impressionable(adjective, person, easy, feelings, ready)
6
soft(adjective, calm, light, easy, informal)
5
easily taken in(expression, adjective, idiom, innocent)
5
trusting(adjective, calm, person, light, simple)
4
mark(adjective, easy, informal, ready, subject)
4
sensitive(adjective, easy, ready, subject, affected)
4
suggestible(adjective, person, easy, feelings, ready)
3
easy mark(expression, adjective, innocent, green)
2
believing(adjective, innocent, green, naive)
2
biting(adjective, innocent, naive, trusting)
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APASmart Define. (2016). gullible thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/gullible/thesaurus/synonyms
ChicagoSmart Define. 2016. "gullible thesaurus" https://smartdefine.org/gullible/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, gullible thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/gullible/thesaurus/synonyms>.
MLASmart Define. "gullible thesaurus" 23 March 2016. Web. 1 October 2026. <https://smartdefine.org/gullible/thesaurus/synonyms>