credulous (adj.)
- accepting
- apish
- asinine
- batty
- beguiled
- believing
- besotted
- brainless
- buffoonish
- childlike
- cockeyed
- confiding
- crazy
- daft
- dazed
- dependent
- dizzy
- doting
- dumb
- fatuous
- flaky
- fond
- foolish
- fuddled
- futile
- gaga
- goofy
- green
- guileless
- gullible
- idiotic
- imbecile
- inane
- inept
- inexperienced
- infatuated
- innocent
- insane
- kooky
- loony
- mad
- maudlin
- moronic
- naive
- nutty
- overcredulous
- reliant
- sappy
- screwy
- senseless
- sentimental
- silly
- simple
- stupid
- superstitious
- thoughtless
- trustful
- trusting
- trusty
- uncritical
- unquestioning
- unsophisticated
- unsuspecting
- unsuspicious
- unwary
- wacky
- wet
- witless
