credulous

Sincere is a related term of credulous.

As adjectives the difference between sincere and credulous

is that sincere is sincere while credulous is excessively ready to believe things; gullible.

As adjectives the difference between credulous and believable

is that credulous is excessively ready to believe things; gullible while believable is capable of being believed; credible.

Artless is a related term of credulous.

As adjectives the difference between artless and credulous

is that artless is having or displaying no guile, cunning, or deceit while credulous is excessively ready to believe things; gullible.

Credulous is a related term of silly.

As adjectives the difference between credulous and silly

is that credulous is excessively ready to believe things; gullible while silly is (label) pitiable; deserving of compassion; helpless.

As a noun silly is

(colloquial) a silly person; a fool.

Elementary is a related term of credulous.

As adjectives the difference between elementary and credulous

is that elementary is relating to the basic, essential or fundamental part of something while credulous is excessively ready to believe things; gullible.

Plain is a related term of credulous.

In obsolete|lang=en terms the difference between plain and credulous

is that plain is (obsolete) a while credulous is (obsolete) believed too readily.

As adjectives the difference between plain and credulous

is that plain is while credulous is excessively ready to believe things; gullible.

As an adverb plain

is (colloquial) simply.

As a noun plain

is (rare|poetic) a lamentation or plain can be an expanse of land with relatively low relief.

As a verb plain

is to lament, bewail or plain can be (obsolete|transitive) to plane or level; to make plain or even on the surface.

As adjectives the difference between crafty and credulous

is that crafty is relating to, or characterized by, craft or skill; dexterous while credulous is excessively ready to believe things; gullible.

As adjectives the difference between superstitious and credulous

is that superstitious is susceptible to superstitions while credulous is excessively ready to believe things; gullible.

As adjectives the difference between impulsive and credulous

is that impulsive is having the power of driving or impelling; giving an impulse; moving; impellent while credulous is excessively ready to believe things; gullible.

As a noun impulsive

is that which impels or gives an impulse; an impelling agent.

As a noun nave

is (human) hand.

As an adjective credulous is

excessively ready to believe things; gullible.