lucidness vs lucidity

lucidness and lucidity both are nouns.

Word	Noun	Adjective	Verb	Adverb
lucidness	Yes	No	No	No
lucidity	Yes	No	No	No

As nouns, lucidness and lucidity are synonyms defined as:

lucidness and lucidity: free from obscurity and easy to understand; the comprehensibility of clear expression

Other synonyms of lucidness include clarity, clearness, limpidity, pellucidity.

lucidness (noun)	lucidity (noun)
free from obscurity and easy to understand; the comprehensibility of clear expression	free from obscurity and easy to understand; the comprehensibility of clear expression
	a lucid state of mind; not confused