gullible

[1]	1 bolt , gobble , wolf (down) , devour , gorge , swallow , throw down , toss off , quaff , guzzle , swill , (Colloq) knock back , swig , (US) chug-a-lug
[2]	swallow , suppress , stifle , choke (back) , smother , strangle

[1]	gulley , channel , river-bed , watercourse , gorge , ravine , canyon , notch , cut , pass , defile , valley , corridor , wadi , (Brit) gill/ghyll , (US) arroyo , (US/Canadian) gulch
[2]	mouthful , swallow , draught , swill , (Colloq) swig

adj.

[1]	innocent , fleeceable , green , green , simple , credulous , unsophisticated , naive , unsuspecting , unwary , unsuspicious , wide-eyed , born yesterday , inexperienced , immature