disinclination vs indisposition

disinclination and indisposition both are nouns.

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

As nouns, disinclination and indisposition are synonyms defined as:

Other synonyms of disinclination include hesitancy, hesitation, reluctance.

disinclination (noun)	indisposition (noun)
a certain degree of unwillingness	a certain degree of unwillingness
that toward which you are inclined to feel dislike	a slight illness