oddity vs curiosity

oddity and curiosity both are nouns.

Word	Noun	Adjective	Verb	Adverb
oddity	Yes	No	No	No
curiosity	Yes	No	No	No

As nouns, oddity and curiosity are synonyms defined as:

Other synonyms of oddity include curio, oddment, peculiarity, rarity.

oddity (noun)	curiosity (noun)
something unusual -- perhaps worthy of collecting	something unusual -- perhaps worthy of collecting
a strange attitude or habit	a state in which you want to learn more about something
eccentricity that is not easily explained