unquestioning vs credulous

unquestioning and credulous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unquestioning	No	Yes	No	No
credulous	No	Yes	No	No

unquestioning (adjective)	credulous (adjective)
being without doubt or reserve	disposed to believe on little evidence
not inclined to ask questions	showing a lack of judgment or experience