timidness vs timidity

timidness and timidity both are nouns.

Word	Noun	Adjective	Verb	Adverb
timidness	Yes	No	No	No
timidity	Yes	No	No	No

As nouns, timidness and timidity are synonyms defined as:

timidness and timidity: fear of the unknown or unfamiliar or fear of making decisions

Other synonyms of timidness include timorousness.

timidness (noun)	timidity (noun)
fear of the unknown or unfamiliar or fear of making decisions	fearfulness in venturing into new and unknown places or activities
	fear of the unknown or unfamiliar or fear of making decisions