faintness vs timidity

faintness and timidity both are nouns.

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

As nouns, timidity is a hypernym of faintness; that is, timidity is a word with a broader meaning than faintness:

faintness: the trait of lacking boldness and courage
timidity: fearfulness in venturing into new and unknown places or activities

Other hypernyms of faintness include timorousness.

faintness (noun)	timidity (noun)
the quality of being dim or lacking contrast	fearfulness in venturing into new and unknown places or activities
barely audible	fear of the unknown or unfamiliar or fear of making decisions
the property of being without strength
the trait of lacking boldness and courage
a feeling of faintness and of being ready to swoon