credulous
[adjective]
Synonyms: unsuspecting, unsuspicious, unwary

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Antonyms: incredulous, skeptical
Contrasted words: mistrustful, suspecting, suspicious, careful, wary, doubtful, doubting, questioning
Related Words: believing, accepting, unquestioning, trustful, trusting, green, inexperienced, naive, simple, unsophisticated, dupable, gullible

[TahlilGaran] English Synonym Dictionary ▲

cred‧u‧lous /ˈkredjələs, ˈkredjʊləs $ -dʒə-/ adjective formal
[Date: 1500-1600; Language: Latin; Origin: credulus, from credere; ⇒ credence]
always believing what you are told, and therefore easily deceived Synonym : gullible:
Quinn charmed credulous investors out of millions of dollars.

[TahlilGaran] Dictionary of Contemporary English ▲