faintness vs timorousness

faintness and timorousness both are nouns.

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

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

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

Other hypernyms of faintness include timidity.

faintness (noun)	timorousness (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