Credulity

(n.) Readiness of belief; a disposition to believe on slight evidence.

Thesaurus Entries

acceptance, acception, acquiescence, assurance, assuredness, belief, certainty, confidence, credence, credit, credulity, dependence, faith, hope, import, intendment, message, purport, received meaning, reception, reliance, reliance on, sense, significance, significancy, signification, stock, store, sureness, surety, suspension of disbelief, trust, understanding, usage