hesitation vs indecision

hesitation and indecision both are nouns.

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

As nouns, indecision is a hypernym of hesitation; that is, indecision is a word with a broader meaning than hesitation:

hesitation: indecision in speech or action
indecision: doubt concerning two or more possible alternatives or courses of action

Other hypernyms of hesitation include indecisiveness, irresolution.

hesitation (noun)	indecision (noun)
the act of pausing uncertainly	the trait of irresolution; a lack of firmness of character or purpose
a certain degree of unwillingness	doubt concerning two or more possible alternatives or courses of action
indecision in speech or action