reluctance vs hesitation

reluctance and hesitation both are nouns.

Word	Noun	Adjective	Verb	Adverb
reluctance	Yes	No	No	No
hesitation	Yes	No	No	No

As nouns, reluctance and hesitation are synonyms defined as:

Other synonyms of reluctance include disinclination, hesitancy, indisposition.

reluctance (noun)	hesitation (noun)
a certain degree of unwillingness	the act of pausing uncertainly
(physics) opposition to magnetic flux (analogous to electric resistance)	a certain degree of unwillingness
	indecision in speech or action