timidity vs self-doubt

timidity and self-doubt both are nouns.

Word	Noun	Adjective	Verb	Adverb
timidity	Yes	No	No	No
self-doubt	Yes	No	No	No

As nouns, self-doubt is a hyponym of timidity; that is, self-doubt is a word with a more specific, narrower meaning than timidity:

Other hyponyms of timidity include cold feet, shyness, diffidence, self-distrust.

timidity (noun)	self-doubt (noun)
fearfulness in venturing into new and unknown places or activities	lack of self-confidence
fear of the unknown or unfamiliar or fear of making decisions