zesty vs zestful

zesty and zestful both are adjectives.

Word	Noun	Adjective	Verb	Adverb
zesty	No	Yes	No	No
zestful	No	Yes	No	No

As adjectives, zesty and zestful are synonyms defined as:

Other synonyms of zesty include barmy, yeasty.

zesty (adjective)	zestful (adjective)
marked by spirited enjoyment	marked by spirited enjoyment
having an agreeably pungent taste