hesitation vs disinclination

hesitation and disinclination both are nouns.

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

As nouns, hesitation and disinclination are synonyms defined as:

Other synonyms of hesitation include hesitancy, indisposition, reluctance.

hesitation (noun)	disinclination (noun)
the act of pausing uncertainly	a certain degree of unwillingness
a certain degree of unwillingness	that toward which you are inclined to feel dislike
indecision in speech or action