Credulousness is always more harshly judged than incredulousness, though they are both merely different aspects of the same fundamental failing, namely, lack of true scepticism.
disposed to believe on little evidence; "the gimmick would convince none but the most credulous" showing a lack of judgment or experience; "so credulous he believes everything he reads
disapproval If you describe someone as credulous, you have a low opinion of them because they are too ready to believe what people tell them and are easily deceived. quack doctors charming money out of the pockets of credulous health-hungry citizens. = gullible. always believing what you are told, and therefore easily deceived = gullible (credulus, from credere; CREDENCE)