yummy vs scrumptious

yummy and scrumptious both are adjectives.

Word	Noun	Adjective	Verb	Adverb
yummy	No	Yes	No	No
scrumptious	No	Yes	No	No

As adjectives, yummy and scrumptious are synonyms defined as:

Other synonyms of yummy include delectable, delicious, luscious, pleasant-tasting, toothsome.

yummy (adjective)	scrumptious (adjective)
extremely pleasing to the sense of taste	extremely pleasing to the sense of taste