gull·ible
ˈgə-lə-bəl
variants
or less commonly gullable
: easily duped or cheated
selling overpriced souvenirs to gullible tourists
especially
: quick to believe something that is not true
gull·ibil·i·ty
ˌgələˈbilətē
-ətē,
-i
plural -es
: the quality or state of being gullible
monstrous was the gullibility of the people—
Arnold Bennett
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Merriam-Webster unabridged



