eagerness vs zeal

eagerness and zeal both are nouns.

Word	Noun	Adjective	Verb	Adverb
eagerness	Yes	No	No	No
zeal	Yes	No	No	No

As nouns, eagerness and zeal are synonyms defined as:

Other synonyms of eagerness include forwardness, readiness.

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

Other hyponyms of eagerness include ardor, ardour, elan.

eagerness (noun)	zeal (noun)
prompt willingness	prompt willingness
a positive feeling of wanting to push ahead with something	a feeling of strong eagerness (usually in favor of a person or cause)
	excessive fervor to do something or accomplish some end