CREDULOUS
credulous
(adjective) disposed to believe on little evidence; “the gimmick would convince none but the most credulous”
credulous
(adjective) showing a lack of judgment or experience; “so credulous he believes everything he reads”
Source: WordNet® 3.1
Etymology
Adjective
credulous (comparative more credulous, superlative most credulous)
Excessively ready to believe things; gullible.
(obsolete) Believed too readily.
Synonyms
• naive, unworldly
• See also: gullible
Antonyms
• incredulous
• noncredulous
Source: Wiktionary
Cred"u*lous (krd"-ls; 135), a. Etym: [L. credulus, fr. credere. See
Creed.]
1. Apt to believe on slight evidence; easly imposed upon;
unsuspecting. Landor.
Eve, our credulous mother. Milton.
2. Believed too readily. [Obs.] Beau & Fl.
Source: Webster’s Unabridged Dictionary 1913 Edition