reluctance vs sloth

reluctance and sloth both are nouns.

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

As nouns, sloth is a hyponym of reluctance; that is, sloth is a word with a more specific, narrower meaning than reluctance:

Other hyponyms of reluctance include slothfulness.

reluctance (noun)	sloth (noun)
a certain degree of unwillingness	apathy and inactivity in the practice of virtue (personified as one of the deadly sins)
(physics) opposition to magnetic flux (analogous to electric resistance)	any of several slow-moving arboreal mammals of South America and Central America; they hang from branches back downward and feed on leaves and fruits
	a disinclination to work or exert yourself