sureness vs confidence

sureness and confidence both are nouns.

Word	Noun	Adjective	Verb	Adverb
sureness	Yes	No	No	No
confidence	Yes	No	No	No

As nouns, sureness and confidence are synonyms defined as:

sureness and confidence: freedom from doubt; belief in yourself and your abilities

Other synonyms of sureness include assurance, authority, self-assurance, self-confidence.

sureness (noun)	confidence (noun)
the quality of being steady and unfailing	freedom from doubt; belief in yourself and your abilities
freedom from doubt; belief in yourself and your abilities	a secret that is confided or entrusted to another
	a feeling of trust (in someone or something)
	a state of confident hopefulness that events will be favorable
	a trustful relationship