natty vs spiffy

natty and spiffy both are adjectives.

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

As adjectives, natty and spiffy are synonyms defined as:

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

natty (adjective)	spiffy (adjective)
marked by up-to-dateness in dress and manners	marked by up-to-dateness in dress and manners