diffidence vs self-distrust

diffidence and self-distrust both are nouns.

Word	Noun	Adjective	Verb	Adverb
diffidence	Yes	No	No	No
self-distrust	Yes	No	No	No

As nouns, diffidence and self-distrust are synonyms defined as:

Other synonyms of diffidence include self-doubt.

diffidence (noun)	self-distrust (noun)
lack of self-confidence	lack of self-confidence