snappy vs spiffy

snappy and spiffy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
snappy	No	Yes	No	No
spiffy	No	Yes	No	No

As adjectives, snappy and spiffy are synonyms defined as:

Other synonyms of snappy include dapper, dashing, jaunty, natty, raffish, rakish, spruce.

snappy (adjective)	spiffy (adjective)
pleasantly cold and invigorating	marked by up-to-dateness in dress and manners
quick and energetic
marked by up-to-dateness in dress and manners
apt to speak irritably
smart and fashionable