gullibility vs naiveness

gullibility and naiveness both are nouns.

Word	Noun	Adjective	Verb	Adverb
gullibility	Yes	No	No	No
naiveness	Yes	No	No	No

As nouns, naiveness is a hypernym of gullibility; that is, naiveness is a word with a broader meaning than gullibility:

gullibility: tendency to believe too readily and therefore to be easily deceived
naiveness: lack of sophistication or worldliness

Other hypernyms of gullibility include naivete, naivety.

gullibility (noun)	naiveness (noun)
tendency to believe too readily and therefore to be easily deceived	lack of sophistication or worldliness