Webster's Revised Unabridged Dictionary · 1913

Credulous

Credulous (kr?d"?-l?s; 135) , adjective

[Latin credulus, from credere. See Creed.]

1.
Apt to believe on slight evidence; easily imposed upon; unsuspecting. — Landor
Eve, our credulous mother. — Milton
2.
Believed too readily. [Obsolete] — Beau. & Fl