credulous
Concise Oxford English Dictionary © 2008 Oxford University Press:
credulous /ˈkrɛdjʊləs/
▶adjective having or showing too great a readiness to believe things.
– derivatives
credulity /krɪˈdjuːlɪti/ noun,
credulously adverb,
credulousness noun.
credulity /krɪˈdjuːlɪti/ noun,
credulously adverb,
credulousness noun.
'credulous' also found in these Oxford entries:

