levity vs anecdotalism

levity and anecdotalism both are nouns.

Word	Noun	Adjective	Verb	Adverb
levity	Yes	No	No	No
anecdotalism	Yes	No	No	No

As nouns, anecdotalism is a hyponym of levity; that is, anecdotalism is a word with a more specific, narrower meaning than levity:

levity: a manner lacking seriousness
anecdotalism: The property of being related to short accounts of real incidents or persons, often humorous or interesting.

Other hyponyms of levity include flippancy, light-mindedness, humorousness, jocoseness, jocosity, merriness.

levity (noun)	anecdotalism (noun)
a manner lacking seriousness	The property of being related to short accounts of real incidents or persons, often humorous or interesting.
feeling an inappropriate lack of seriousness